diff-parseopt: convert -l

Signed-off-by: NNguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

diff.c

@@ -5283,6 +5283,8 @@ static void prep_parse_options(struct diff_options *options)
 		OPT_CALLBACK_F(0, "follow", options, NULL,
 			       N_("continue listing the history of a file beyond renames"),
 			       PARSE_OPT_NOARG, diff_opt_follow),
+		OPT_INTEGER('l', NULL, &options->rename_limit,
+			    N_("prevent rename/copy detection if the number of rename/copy targets exceeds given limit")),
 
 		OPT_GROUP(N_("Diff algorithm options")),
 		OPT_BIT(0, "minimal", &options->xdl_opts,
@@ -5413,10 +5415,6 @@ int diff_opt_parse(struct diff_options *options,
 	}
 
 	/* misc options */
-	else if ((argcount = short_opt('l', av, &optarg))) {
-		options->rename_limit = strtoul(optarg, NULL, 10);
-		return argcount;
-	}
 	else if ((argcount = short_opt('S', av, &optarg))) {
 		options->pickaxe = optarg;
 		options->pickaxe_opts |= DIFF_PICKAXE_KIND_S;