config: allow for environment variable substitution fallback to default value.

Make ap_resolve_env() handle the ${VAR?=default value} syntax, and update docs.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1876835 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 4 insertions, 0 deletions

diff --git a/CHANGES b/CHANGES
index 53a0f8e5a0..bc24d2408f 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,6 +1,10 @@
                                                          -*- coding: utf-8 -*-
 Changes with Apache 2.5.1
 
+  *) config: Allow for environment variable substitution with default value,
+     for when the variable is not defined, using format ${VAR?=default value}.
+     [Yann Ylavic]
+
   *) mod_http2: Fixed regression that no longer set H2_STREAM_ID and H2_STREAM_TAG.
      PR64330 [Stefan Eissing]