dep_rewrite: don't match avahi split dependencies

conf/noarch/entropy/packages/packages.server.dep_rewrite

@@ -108,7 +108,9 @@ dev-java/icedtea (.*)sys-devel/gcc(.*)
 * (.*)net-dns/avahi(.*)(\[.*qt4(,.*)?\]) \1net-dns/avahi-qt\2
 * (.*)net-dns/avahi(.*)(\[.*mono(,.*)?\]) \1net-dns/avahi-mono\2
 # net-dns/avahi, without [...]
-* (.*)net-dns/avahi([^\[\]]*$) \1net-dns/avahi-base\2
+# note: make sure not to match the split dependencies (from the metapackage)
+# themselves
+* (.*)net-dns/avahi(?!-base|-gtk|-gtk3|-mono|-qt)([^\[\]]*$) \1net-dns/avahi-base\2
 
 # Fix gtk-3 deps
 media-video/kino (.*)x11-libs/gtk(.*) \1x11-libs/gtk\2:2