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	* iostream.cc: Add missing calls to isfx and setup a cleanup
	region for the locked stream.
	* iostream.h: Likewise.
	* isgetline.cc: Likewise.
	* isgetsb.cc: Likewise.
	* isscan.cc: Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@28573 138bc75d-0d04-0410-961f-82ee72b054a4