test-lib: Replace uses of $(expr ...) by POSIX shell features.

diff --git a/builtin-revert.c b/builtin-revert.c
index d210150671830c10f098463175e5a6e8d304c1a4..3f2614e1bbef009afadefff7d284225533db2a09 100644 (file)
--- a/builtin-revert.c
+++ b/builtin-revert.c
@@ -376,6 +376,7 @@ static int revert_or_cherry_pick(int argc, const char **argv)
            (write_cache(index_fd, active_cache, active_nr) ||
             commit_locked_index(&index_lock)))
                die("%s: Unable to write new index file", me);
+       rollback_lock_file(&index_lock);
 
        if (!clean) {
                add_to_msg("\nConflicts:\n\n");