* fstream.h (ifstream::ifstream): Add ios::in to mode.

	(ifstream::open): Likewise.
	(ofstream::ofstream): Add ios::out to mode.
	(ofstream::open): Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@31666 138bc75d-0d04-0410-961f-82ee72b054a4