libT: undo r13901 regression to #4888 in the nightlies

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@14068 f4695dd4-2c0a-0410-b89c-da849a56a58e
(trunk libT) #5318: 'socket leak when bind() fails': fixed.

git-svn-id: svn://svn.transmissionbt.com/Transmission/trunk@14069 f4695dd4-2c0a-0410-b89c-da849a56a58e