PR middle-end/25022
	* builtins.c (expand_builtin_printf, expand_builtin_fprintf,
	fold_builtin_fputs, fold_builtin_printf, fold_builtin_fprintf):
	Lookup the explicit replacement functions for any unlocked
	stdio builtin transformations.

testsuite:
	* gcc.c-torture/execute/builtins/fprintf.c,
	gcc.c-torture/execute/builtins/fputs-lib.c,
	gcc.c-torture/execute/builtins/fputs.c,
	gcc.c-torture/execute/builtins/lib/fprintf.c,
	gcc.c-torture/execute/builtins/lib/printf.c,
	gcc.c-torture/execute/builtins/printf.c: Test the unlocked style.

From-SVN: r107535