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-rw-r--r--src/hooks/dhcp/user_chk/user_file.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/hooks/dhcp/user_chk/user_file.h b/src/hooks/dhcp/user_chk/user_file.h
index b65862e4ba..c0731f0f97 100644
--- a/src/hooks/dhcp/user_chk/user_file.h
+++ b/src/hooks/dhcp/user_chk/user_file.h
@@ -44,7 +44,8 @@ public:
/// where:
///
/// <user_type> text label of the id type: "HW_ADDR" or "DUID"
-/// <user_id> the user's id as a string of hex digits without delimiters
+/// <user_id> the user's id as a string of hex digits with or without
+/// colons (':') as a delimiter
/// (options) zero or more string elements as name-value pairs, separated by
/// commas: "opt1" : "val1", "other_opt", "77" ...
///