Use OPT_SET_INT_F() for cmdline option specification

The only thing these commands need is extra parseopt flag which can be
passed in by OPT_SET_INT_F() and it is a bit more compact than full
struct initialization.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/builtin/fetch.c b/builtin/fetch.c
index 1f037e8..0a4512b 100644
--- a/builtin/fetch.c
+++ b/builtin/fetch.c
@@ -157,9 +157,9 @@ static struct option builtin_fetch_options[] = {
 			N_("deepen history of shallow clone, excluding rev")),
 	OPT_INTEGER(0, "deepen", &deepen_relative,
 		    N_("deepen history of shallow clone")),
-	{ OPTION_SET_INT, 0, "unshallow", &unshallow, NULL,
-		   N_("convert to a complete repository"),
-		   PARSE_OPT_NONEG | PARSE_OPT_NOARG, NULL, 1 },
+	OPT_SET_INT_F(0, "unshallow", &unshallow,
+		      N_("convert to a complete repository"),
+		      1, PARSE_OPT_NONEG),
 	{ OPTION_STRING, 0, "submodule-prefix", &submodule_prefix, N_("dir"),
 		   N_("prepend this to submodule path output"), PARSE_OPT_HIDDEN },
 	{ OPTION_CALLBACK, 0, "recurse-submodules-default",