This fixes the 22 failing specs for String#unpack, and addresses http://jira.codehaus.org/browse/JRUBY-5656.
Support '#' in String#unpack.
MRI does add trailing nils for Q in String#unpack.
Support '_' and '!' after '<' and '>'.
Delete unpack spec tags.
Hmm, odd one: the build fails, but all I can see is an error whilst building jruby-launcher which doesn’t sound related?
Yeah, I think the build's failure has nothing to do with your changes. I'll review what you have here and make sure it's working ok before pushing.
Looks ok here!