Correct the Pod used to block comment a section of git log output.

Commit 31940c077ae95db7 added some git log output. To avoid the need to
re-indent it, it was "commented out" using Pod. However, the Pod used was
buggy. It used a =for, when it should have used a =begin/=end pair.

Without this, Pod renderers display the "comment" as if it is part of the
documentation, which isn't desired.

diff --git a/Porting/bisect-runner.pl b/Porting/bisect-runner.pl
index 28db89e..92c6852 100755 (executable)
--- a/Porting/bisect-runner.pl
+++ b/Porting/bisect-runner.pl
@@ -2476,7 +2476,7 @@ EOPATCH
         # corrected there. cfgperl (with the fixes) was merged back to blead.
         # The resultant rather twisty maze of commits looks like this:
 
-=for comment
+=begin comment
 
 * | |   commit 137225782c183172f360c827424b9b9f8adbef0e
 |\ \ \  Merge: 22c35a8 2a8ee23
@@ -2534,6 +2534,8 @@ EOPATCH
 | | |
 | | |     p4raw-id: //depot/perl@2133
 
+=end comment
+
 =cut
 
         # and completely confuses git bisect (and at least me), causing it to