git-grep: fix parsing of pathspec separator '--'

We used to misparse

	git grep -e foo -- '*.sh'

Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/builtin-grep.c b/builtin-grep.c
index 2e7986c..a8bec72 100644 (file)
--- a/builtin-grep.c
+++ b/builtin-grep.c
@@ -817,8 +817,12 @@ int cmd_grep(int argc, const char **argv, char **envp)
                        }
                        usage(builtin_grep_usage);
                }
-               if (!strcmp("--", arg))
+               if (!strcmp("--", arg)) {
+                       /* later processing wants to have this at argv[1] */
+                       argv--;
+                       argc++;
                        break;
+               }
                if (*arg == '-')
                        usage(builtin_grep_usage);