Add extra webserver group for openSUSE

It uses wwwrun (or www group), it's added as last so it shouldn't fail our normal installs.

Author: vmcj

configure.ac

@@ -101,7 +101,7 @@ if test "x$DOMSERVER_BUILD_ENABLED" = xyes; then
 	if test "x$with_webserver_group" = x; then
 		# Try a number of group names and choose first one found
 		found=0
-		for g in www-data apache httpd nginx ; do
+		for g in www-data apache httpd nginx wwwrun www ; do
 			if getent group $g >/dev/null 2>&1 ; then
 			   found=1
 			   break