w3m: fix PKGNAME for w3m-img

Author: 0-wiz-0

www/w3m/Makefile.common

@@ -1,10 +1,10 @@
-# $NetBSD: Makefile.common,v 1.83 2026/01/25 08:02:05 wiz Exp $
+# $NetBSD: Makefile.common,v 1.84 2026/01/26 00:22:28 wiz Exp $
 #
 # used by www/w3m/Makefile
 # used by www/w3m-img/Makefile
 
 DISTNAME=	w3m-v0.5.6
-PKGNAME=	${DISTNAME:S/-v/-/}
+PKGNAME?=	${DISTNAME:S/-v/-/}
 CATEGORIES=	www
 MASTER_SITES=	-https://git.sr.ht/~rkta/w3m/archive/v${PKGVERSION_NOREV}.tar.gz