Stop leaking memory in Branch.each and Branch.each_name.
Stop leaking memory in Branch.each and Branch.each_name.

tpickett66/rugged,libgit2/rugged,saraid/rugged,libgit2/rugged,tpickett66/rugged,Acidburn0zzz/rugged,saraid/rugged,Acidburn0zzz/rugged,Acidburn0zzz/rugged,libgit2/rugged,saraid/rugged,tpickett66/rugged