rename pathspec_prefix() to common_prefix() and move to dir.[ch]

diff --git a/builtin/commit.c b/builtin/commit.c
index 50bacd68e2103de9f976fecd9ac2bc0ef737884a..1e8e0acb534c142c0d91bd7f8560d2d5ddbfc3fa 100644 (file)
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -257,7 +257,7 @@ static int list_paths(struct string_list *list, const char *with_tree,
        m = xcalloc(1, i);
 
        if (with_tree) {
-               char *max_prefix = pathspec_prefix(pattern);
+               char *max_prefix = common_prefix(pattern);
                overlay_tree_on_cache(with_tree, max_prefix ? max_prefix : prefix);
                free(max_prefix);
        }