Make-lang.in (f/str-*.h, f/str-*.j): Use stamp files and move-if-change to...

Make-lang.in (f/str-*.h, f/str-*.j): Use stamp files and move-if-change to avoid changing these files unnecessarily.

	* Make-lang.in (f/str-*.h, f/str-*.j): Use stamp files and
	move-if-change to avoid changing these files unnecessarily.

From-SVN: r76800