xbps-src: redo only_for_archs check.

xbps-src/shutils/tmpl_funcs.sh.in

@@ -290,10 +290,12 @@ prepare_tmpl()
 	done
 
 	for i in ${only_for_archs}; do
-		[ "$i" = "$XBPS_MACHINE" ] && found=si && break
+		[ "$i" != "$XBPS_MACHINE" ] && continue
+		found=1
+		break
 	done
 	if [ -n "${only_for_archs}" -a -z "$found" ]; then
-		msg_normal "$pkgver: this package can only be built on ${only_for_archs}.\n"
+		msg_normal "$pkgname: this package can only be built on ${only_for_archs}.\n"
 		return 0
 	fi