safe_create_leading_directories: fix race that could give a false negative

diff --git a/builtin/grep.c b/builtin/grep.c
index a7e8df0d409fd431b71d1458cde6252ae119bf18..0654e0b0f693f9cdd4ba2d7f84c110f7ef8b11b4 100644 (file)
--- a/builtin/grep.c
+++ b/builtin/grep.c
@@ -932,7 +932,7 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
        if (!seen_dashdash) {
                int j;
                for (j = i; j < argc; j++)
-                       verify_filename(prefix, argv[j]);
+                       verify_filename(prefix, argv[j], j == i);
        }
 
        paths = get_pathspec(prefix, argv + i);