tree-wide: drop duplicated blank lines

```
$ for i in */*.[ch] */*/*.[ch]; do sed -e '/^$/ {N; s/\n$//g}' -i $i; done
$ git checkout HEAD -- basic/linux shared/linux
```

21 files changed, 0 insertions, 23 deletions

diff --git a/src/basic/missing_syscall.h b/src/basic/missing_syscall.h
index cd455eb47c..f590b91c66 100644
--- a/src/basic/missing_syscall.h
+++ b/src/basic/missing_syscall.h
@@ -470,7 +470,6 @@ static inline long missing_set_mempolicy(int mode, const unsigned long *nodemask
 #  define set_mempolicy missing_set_mempolicy
 #endif
 
-
 #if !HAVE_GET_MEMPOLICY
 static inline long missing_get_mempolicy(int *mode, unsigned long *nodemask,
                            unsigned long maxnode, void *addr,
diff --git a/src/boot/bootctl.c b/src/boot/bootctl.c
index 7e64d13c7f..aeb596f7d1 100644
--- a/src/boot/bootctl.c
+++ b/src/boot/bootctl.c
@@ -385,7 +385,6 @@ static int boot_entry_show(const BootEntry *e, bool show_as_default) {
                 if (!t)
                         return log_oom();
 
-
                 ts = strv_split_newlines(t);
                 if (!ts)
                         return log_oom();
@@ -394,7 +393,6 @@ static int boot_entry_show(const BootEntry *e, bool show_as_default) {
                 if (!t2)
                         return log_oom();
 
-
                 printf("      options: %s\n", t2);
         }
         if (e->device_tree)
diff --git a/src/core/dbus-socket.c b/src/core/dbus-socket.c
index 0aadc98c9b..e895c94e12 100644
--- a/src/core/dbus-socket.c
+++ b/src/core/dbus-socket.c
@@ -309,7 +309,6 @@ static int bus_socket_set_transient_property(
                                                       &s->exec_command[ci],
                                                       message, flags, error);
 
-
         if (streq(name, "Symlinks")) {
                 _cleanup_strv_free_ char **l = NULL;
                 char **p;
diff --git a/src/core/job.c b/src/core/job.c
index 90c829d08d..b280574aac 100644
--- a/src/core/job.c
+++ b/src/core/job.c
@@ -1554,7 +1554,6 @@ int job_get_after(Job *j, Job*** ret) {
                 list[n++] = other->job;
         }
 
-
         HASHMAP_FOREACH_KEY(v, other, j->unit->dependencies[UNIT_AFTER], i) {
                 if (!other->job)
                         continue;
diff --git a/src/journal/journal-def.h b/src/journal/journal-def.h
index d68ce3894b..ff4e71a31b 100644
--- a/src/journal/journal-def.h
+++ b/src/journal/journal-def.h
@@ -101,7 +101,6 @@ struct EntryObject EntryObject__contents;
 struct EntryObject__packed EntryObject__contents _packed_;
 assert_cc(sizeof(struct EntryObject) == sizeof(struct EntryObject__packed));
 
-
 struct HashItem {
         le64_t head_hash_offset;
         le64_t tail_hash_offset;
diff --git a/src/libsystemd/sd-bus/bus-message.c b/src/libsystemd/sd-bus/bus-message.c
index 5360bce904..eb029e4453 100644
--- a/src/libsystemd/sd-bus/bus-message.c
+++ b/src/libsystemd/sd-bus/bus-message.c
@@ -890,7 +890,6 @@ int bus_message_new_synthetic_error(
         return 0;
 }
 
-
 _public_ sd_bus_message* sd_bus_message_ref(sd_bus_message *m) {
         if (!m)
                 return NULL;
diff --git a/src/libsystemd/sd-netlink/netlink-message.c b/src/libsystemd/sd-netlink/netlink-message.c
index 5323844c08..ddfb3ae96c 100644
--- a/src/libsystemd/sd-netlink/netlink-message.c
+++ b/src/libsystemd/sd-netlink/netlink-message.c
@@ -402,7 +402,6 @@ int sd_netlink_message_append_sockaddr_in6(sd_netlink_message *m, unsigned short
         return netlink_message_append_sockaddr_union(m, type, (const union sockaddr_union *) data);
 }
 
-
 int sd_netlink_message_append_ether_addr(sd_netlink_message *m, unsigned short type, const struct ether_addr *data) {
         int r;
 
diff --git a/src/network/netdev/netdev.h b/src/network/netdev/netdev.h
index 732b563d67..989dd64ffc 100644
--- a/src/network/netdev/netdev.h
+++ b/src/network/netdev/netdev.h
@@ -182,7 +182,6 @@ static inline NetDevCreateType netdev_get_create_type(NetDev *netdev) {
         return NETDEV_VTABLE(netdev)->create_type;
 }
 
-
 CONFIG_PARSER_PROTOTYPE(config_parse_netdev_kind);
 
 /* gperf */
diff --git a/src/network/networkd-fdb.c b/src/network/networkd-fdb.c
index 5b7468c103..b1bd62cd8c 100644
--- a/src/network/networkd-fdb.c
+++ b/src/network/networkd-fdb.c
@@ -349,7 +349,6 @@ int config_parse_fdb_vxlan_vni(
         return 0;
 }
 
-
 int config_parse_fdb_ntf_flags(
                 const char *unit,
                 const char *filename,
diff --git a/src/nspawn/nspawn-oci.c b/src/nspawn/nspawn-oci.c
index b401a898a3..ef67731339 100644
--- a/src/nspawn/nspawn-oci.c
+++ b/src/nspawn/nspawn-oci.c
@@ -273,7 +273,6 @@ static int oci_rlimits(const char *name, JsonVariant *v, JsonDispatchFlags flags
                         {}
                 };
 
-
                 r = json_dispatch(e, table, oci_unexpected, flags, &data);
                 if (r < 0)
                         return r;
diff --git a/src/shared/bus-wait-for-units.c b/src/shared/bus-wait-for-units.c
index d07f491e93..4ee2a2908d 100644
--- a/src/shared/bus-wait-for-units.c
+++ b/src/shared/bus-wait-for-units.c
@@ -366,7 +366,6 @@ int bus_wait_for_units_add_unit(
                 if (r < 0)
                         return log_debug_errno(r, "Failed to add reference to unit %s: %m", unit);
 
-
                 item->flags |= BUS_WAIT_REFFED;
         }
 
diff --git a/src/shared/journal-importer.c b/src/shared/journal-importer.c
index 44032548ad..7c4fc7021d 100644
--- a/src/shared/journal-importer.c
+++ b/src/shared/journal-importer.c
@@ -23,7 +23,6 @@ enum {
         IMPORTER_STATE_EOF,         /* done */
 };
 
-
 void journal_importer_cleanup(JournalImporter *imp) {
         if (imp->fd >= 0 && !imp->passive_fd) {
                 log_debug("Closing %s (fd=%d)", imp->name ?: "importer", imp->fd);
diff --git a/src/shared/logs-show.c b/src/shared/logs-show.c
index 21b3251034..b615c70dff 100644
--- a/src/shared/logs-show.c
+++ b/src/shared/logs-show.c
@@ -431,7 +431,6 @@ static int output_short(
         if (priority_len == 1 && *priority >= '0' && *priority <= '7')
                 p = *priority - '0';
 
-
         audit = streq_ptr(transport, "audit");
 
         if (mode == OUTPUT_SHORT_MONOTONIC)
diff --git a/src/shared/varlink.c b/src/shared/varlink.c
index 54d48991e8..99343167f6 100644
--- a/src/shared/varlink.c
+++ b/src/shared/varlink.c
@@ -1874,7 +1874,6 @@ fail:
         return r;
 }
 
-
 void varlink_detach_event(Varlink *v) {
         if (!v)
                 return;
diff --git a/src/systemctl/systemctl.c b/src/systemctl/systemctl.c
index 0305f61194..8e964214d1 100644
--- a/src/systemctl/systemctl.c
+++ b/src/systemctl/systemctl.c
@@ -4673,7 +4673,6 @@ static int map_conditions(sd_bus *bus, const char *member, sd_bus_message *m, sd
                 if (!c->name || !c->param)
                         return -ENOMEM;
 
-
                 LIST_PREPEND(conditions, i->conditions, TAKE_PTR(c));
         }
         if (r < 0)
diff --git a/src/systemd/sd-id128.h b/src/systemd/sd-id128.h
index c5fbe0a4f1..9b00b76ea6 100644
--- a/src/systemd/sd-id128.h
+++ b/src/systemd/sd-id128.h
@@ -54,7 +54,6 @@ int sd_id128_get_boot_app_specific(sd_id128_t app_id, sd_id128_t *ret);
 #define SD_ID128_MAKE(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15) \
         ((const sd_id128_t) SD_ID128_ARRAY(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15))
 
-
 /* Note that SD_ID128_FORMAT_VAL will evaluate the passed argument 16
  * times. It is hence not a good idea to call this macro with an
  * expensive function as parameter or an expression with side
diff --git a/src/test/test-execute.c b/src/test/test-execute.c
index d67b773d13..5b3e6875d6 100644
--- a/src/test/test-execute.c
+++ b/src/test/test-execute.c
@@ -747,7 +747,6 @@ static int run_tests(UnitFileScope scope, const test_entry tests[], char **patte
         return 0;
 }
 
-
 int main(int argc, char *argv[]) {
         _cleanup_(rm_rf_physical_and_freep) char *runtime_dir = NULL;
         _cleanup_free_ char *test_execute_path = NULL;
diff --git a/src/test/test-fileio.c b/src/test/test-fileio.c
index 1ad47a4aa3..56af5a8bc3 100644
--- a/src/test/test-fileio.c
+++ b/src/test/test-fileio.c
@@ -629,7 +629,6 @@ static void test_tempfn(void) {
 static const char chars[] =
         "Aąę„”\n루\377";
 
-
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wtype-limits"
 
diff --git a/src/test/test-proc-cmdline.c b/src/test/test-proc-cmdline.c
index 4e209de5b6..6d25a6919e 100644
--- a/src/test/test-proc-cmdline.c
+++ b/src/test/test-proc-cmdline.c
@@ -170,7 +170,6 @@ static void test_proc_cmdline_get_key_many(void) {
                                             "doubleticks", &value6,
                                             "zummm", &value7) == 5);
 
-
         assert_se(streq_ptr(value1, "quux"));
         assert_se(!value2);
         assert_se(streq_ptr(value3, "tuet"));
diff --git a/src/udev/net/link-config.c b/src/udev/net/link-config.c
index d05aa6e6ca..d44af64d5e 100644
--- a/src/udev/net/link-config.c
+++ b/src/udev/net/link-config.c
@@ -385,7 +385,6 @@ int link_config_apply(link_config_ctx *ctx, link_config *config,
         if (r < 0)
                 return log_device_warning_errno(device, r, "Could not find ifindex: %m");
 
-
         (void) link_unsigned_attribute(device, "name_assign_type", &name_type);
 
         if (IN_SET(name_type, NET_NAME_USER, NET_NAME_RENAMED)
diff --git a/src/udev/udev-rules.c b/src/udev/udev-rules.c
index e9a6453b6c..64b0b9b102 100644
--- a/src/udev/udev-rules.c
+++ b/src/udev/udev-rules.c
@@ -31,7 +31,6 @@
 
 #define RULES_DIRS (const char* const*) CONF_PATHS_STRV("udev/rules.d")
 
-
 typedef enum {
         OP_MATCH,        /* == */
         OP_NOMATCH,      /* != */
@@ -176,7 +175,6 @@ struct UdevRules {
         LIST_HEAD(UdevRuleFile, rule_files);
 };
 
-
 /*** Logging helpers ***/
 
 #define log_rule_full(device, rules, level, error, fmt, ...)            \