Merge branch 'fc/maint-format-patch-pathspec-dashes'

Conflicts:
	t/t4014-format-patch.sh

builtin-log.c

@@ -976,7 +976,8 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
 	 */
 	argc = parse_options(argc, argv, prefix, builtin_format_patch_options,
 			     builtin_format_patch_usage,
-			     PARSE_OPT_KEEP_ARGV0 | PARSE_OPT_KEEP_UNKNOWN);
+			     PARSE_OPT_KEEP_ARGV0 | PARSE_OPT_KEEP_UNKNOWN |
+			     PARSE_OPT_KEEP_DASHDASH);
 
 	if (do_signoff) {
 		const char *committer;

t/t4014-format-patch.sh

@@ -552,4 +552,9 @@ test_expect_success 'format-patch --numstat should produce a patch' '
 	git format-patch --numstat --stdout master..side > output &&
 	test 6 = $(grep "^diff --git a/" output | wc -l)'
 
+test_expect_success 'format-patch -- <path>' '
+	git format-patch master..side -- file 2>error &&
+	! grep "Use .--" error
+'
+
 test_done