git-remote-testgit: avoid process substitution

diff --git a/git-remote-testgit b/git-remote-testgit
index 5fd09f965a644a279ac79f5f1d0748650744e922..643e4aeb1901b29afe092f26af4b8b5f147a7ea2 100755 (executable)
--- a/git-remote-testgit
+++ b/git-remote-testgit
@@ -86,17 +86,18 @@ do
                        exit 1
                fi
 
-               before=$(git for-each-ref --format='%(refname) %(objectname)')
+               before=$(git for-each-ref --format=' %(refname) %(objectname) ')
 
                git fast-import "${testgitmarks_args[@]}" --quiet
 
-               after=$(git for-each-ref --format='%(refname) %(objectname)')
-
                # figure out which refs were updated
-               join -e 0 -o '0 1.2 2.2' -a 2 <(echo "$before") <(echo "$after") |
-               while read ref a b
+               git for-each-ref --format='%(refname) %(objectname)' |
+               while read ref a
                do
-                       test $a == $b && continue
+                       case "$before" in
+                       *" $ref $a "*)
+                               continue ;;     # unchanged
+                       esac
                        echo "ok $ref"
                done