Switch to gettext-tools, we only need for building.

While here, pet portlint and move some entries out of the USES section.

PR:		234030
Submitted by:	John Hein <z7dr6ut7gs@snkmail.com>

misc/iso-codes/Makefile

@@ -3,6 +3,7 @@
 
 PORTNAME=	iso-codes
 PORTVERSION=	4.1
+PORTREVISION=	1
 CATEGORIES=	misc
 
 MAINTAINER=	kwm@FreeBSD.org
@@ -10,7 +11,8 @@ COMMENT=	Lists of the country, language, and currency iso names
 
 LICENSE=	LGPL21
 
-USES=		gettext gmake pathfix python:3.4+,build tar:xz
+USES=		gettext-tools gmake pathfix python:3.4+,build tar:xz
+
 GNU_CONFIGURE=	yes
 NO_ARCH=	yes