devel/dbus: ensure version script is supported

dbus in its configure script is testing if ld supports version scripts
to do test it test an empty code with a map file full of symbols, which
results in failure with lld 1.17 which complains the version contains
unknown symbols.

By pass the test claiming we always support version script to fix this.
Bump portrevision as some packages has been build without proper
versioning

devel/dbus/Makefile

@@ -1,6 +1,6 @@
 PORTNAME=	dbus
 DISTVERSION=	1.14.10
-PORTREVISION=	2
+PORTREVISION=	3
 PORTEPOCH=	1
 CATEGORIES=	devel gnome
 MASTER_SITES=	https://dbus.freedesktop.org/releases/dbus/
@@ -27,6 +27,7 @@ CONFIGURE_ARGS=	--disable-apparmor \
 		--disable-systemd \
 		--with-session-socket-dir=/tmp \
 		--with-test-socket-dir=${WRKDIR}
+CONFIGURE_ENV=	have_ld_version_script=yes
 
 INSTALL_TARGET=	install-strip