Merge commit 'a6a4596e12192375e1d9dffeae24d6d4c41b25c1'

* commit 'a6a4596e12192375e1d9dffeae24d6d4c41b25c1':
  tcp: Explicitly convert a pointer to a boolean integer

Conflicts:
	libavformat/tcp.c

See: 22fbc7f8be
Merged-by: Michael Niedermayer <michaelni@gmx.at>