logging (but see below)

The logging is both for paranoia and parsing/automated processing.  The
ones you're probably interested in parsing should be easy to pick out
and are very likely to have tab-delimited fields already.

src/Gitolite/Hooks/PostUpdate.pm

@@ -20,6 +20,7 @@ use warnings;
 
 sub post_update {
     trace( 2, @ARGV );
+    gl_log( 'post-update', @ARGV );
     # this is the *real* post_update hook for gitolite
 
     tsh_try("git ls-tree --name-only master");