Correct pattern match

Author: Emile Joubert

Makefile

@@ -33,7 +33,7 @@ all:
 test: dotnet/.ok erlang/.ok java/.ok python/.ok php/.ok ruby/.ok
 RUBYVER=$(RUBYVER) python test.py
 
-RABBITVER:=`curl -s "http://www.rabbitmq.com/releases/rabbitmq-server/?C=N;O=D;F=0;V=1" | grep -m1 -oe 'v[0-9\.]\+' | head -n 1`
+RABBITVER:=`curl -s "http://www.rabbitmq.com/releases/rabbitmq-server/?C=N;O=D;F=0;V=1" | grep -oE '([0-9\.]{5,})' | head -n 1`
 R=http://www.rabbitmq.com/releases
 
 DVER=$(RABBITVER)