* argv.c (safe-ctype.h): Include it.
	(ISBLANK): Remove.
	(stdio.h): Include.
	(buildargv): Use ISSPACE instead of ISBLANK.
	(expandargv): New function.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@104664 138bc75d-0d04-0410-961f-82ee72b054a4