stdio_filebuf.h (stdio_filebuf(int, std::ios_base::openmode, bool, size_t), [...]): Shorten a bit (-10 lines) by factoring out some code.

2003-05-01  Paolo Carlini  <pcarlini@unitus.it>

	* include/ext/stdio_filebuf.h
	(stdio_filebuf(int, std::ios_base::openmode, bool, size_t),
	stdio_filebuf(std::__c_file*, std::ios_base::openmode, size_t)):
	Shorten a bit (-10 lines) by factoring out some code.

From-SVN: r66320