config: correct "--type" option in "git config -h" output

The usage help for --type option of `git config` is missing `type`
in the argument placeholder (`<>`). Add it.

Signed-off-by: Matheus Felipe <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: matheusfelipeog

builtin/config.c

@@ -151,7 +151,7 @@ static struct option builtin_config_options[] = {
 	OPT_BIT(0, "get-color", &actions, N_("find the color configured: slot [default]"), ACTION_GET_COLOR),
 	OPT_BIT(0, "get-colorbool", &actions, N_("find the color setting: slot [stdout-is-tty]"), ACTION_GET_COLORBOOL),
 	OPT_GROUP(N_("Type")),
-	OPT_CALLBACK('t', "type", &type, "", N_("value is given this type"), option_parse_type),
+	OPT_CALLBACK('t', "type", &type, N_("type"), N_("value is given this type"), option_parse_type),
 	OPT_CALLBACK_VALUE(0, "bool", &type, N_("value is \"true\" or \"false\""), TYPE_BOOL),
 	OPT_CALLBACK_VALUE(0, "int", &type, N_("value is decimal number"), TYPE_INT),
 	OPT_CALLBACK_VALUE(0, "bool-or-int", &type, N_("value is --bool or --int"), TYPE_BOOL_OR_INT),