repobrowse: simplify command generation for git commands

This shortens the code quite a bit at a negligible performance cost,
and the diffstat agrees.

1 files changed, 2 insertions, 3 deletions

diff --git a/lib/PublicInbox/RepobrowseGitCommit.pm b/lib/PublicInbox/RepobrowseGitCommit.pm
index 328d2d40..6eadd2e5 100644
--- a/lib/PublicInbox/RepobrowseGitCommit.pm
+++ b/lib/PublicInbox/RepobrowseGitCommit.pm
@@ -131,10 +131,9 @@ sub call_git_commit { # RepobrowseBase calls this
         }
 
         my $git = $req->{repo_info}->{git};
-        my $cmd = [ 'git', "--git-dir=$git->{git_dir}", qw(show
-                        -z --numstat -p --encoding=UTF-8
+        my $cmd = $git->cmd(qw(show -z --numstat -p --encoding=UTF-8
                         --no-notes --no-color -c),
-                        $git->abbrev, GIT_FMT, $id, '--' ];
+                        $git->abbrev, GIT_FMT, $id, '--');
         my $rdr = { 2 => $git->err_begin };
         my $qsp = PublicInbox::Qspawn->new($cmd, undef, $rdr);
         $req->{'q'} = $q;