honor core.abbrev from git-config(1)

We will use core.abbrev=12 by default if unset, as the git
default of 7 is too low for long-term usability of links.
Some of our callers used 16, which was probably excessive.

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/PublicInbox/RepobrowseGitTree.pm b/lib/PublicInbox/RepobrowseGitTree.pm
index e8012dde..7c5ae60d 100644
--- a/lib/PublicInbox/RepobrowseGitTree.pm
+++ b/lib/PublicInbox/RepobrowseGitTree.pm
@@ -141,7 +141,7 @@ sub git_blob_show {
 sub git_tree_show {
         my ($req, $fh, $git, $hex, $q) = @_;
         $fh->write('<pre>');
-        my $ls = $git->popen(qw(ls-tree --abbrev=16 -l -z), $hex);
+        my $ls = $git->popen(qw(ls-tree -l -z), $git->abbrev, $hex);
         my $t = cur_path($req, $q);
         my $pfx;
         $fh->write("path: $t\n\n");