SDL: wikiheaders: Don't escape `.` chars in manpage's brief section. (a7279)

SDL Commits
1 
From a727925b5a17f06e489e4c445ff5642f086a3e16 Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <[EMAIL REDACTED]>
Date: Wed, 15 Apr 2026 13:28:52 -0400
Subject: [PATCH] wikiheaders: Don't escape `.` chars in manpage's brief
 section.

Otherwise, the `apropos` command gets upset.

Fixes #15387.

(cherry picked from commit a49a5e87a9fa41a12da32fca98987beef84964fc)
---
 build-scripts/wikiheaders.pl | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/build-scripts/wikiheaders.pl b/build-scripts/wikiheaders.pl
index 2092912bc97c3..d2a1fab4cb316 100755
--- a/build-scripts/wikiheaders.pl
+++ b/build-scripts/wikiheaders.pl
@@ -2912,6 +2912,11 @@ sub generate_envvar_wiki_page {
         $brief = shift @briefsplit;
         $brief = dewikify($wikitype, $brief);
 
+        # Hack: `apropros` doesn't like escaped character things like `\[char46]` for `.`...since almost every
+        # manpage will end their Brief section with a period and it won't wordwrap to risk being a groff control
+        # character, just replace it.
+        $brief =~ s/\\\[char46\]/./g;
+
         if (defined $remarks) {
             $remarks = dewikify($wikitype, join("\n", @briefsplit) . $remarks);
         }