* ar.c, Makefile.in, new files {is,not,maybe}-ranlib.c:

	* ar.c, Makefile.in, new files {is,not,maybe}-ranlib.c:
	Make two different binaries for ar and ranlib, instead of
	distinguishing them at run time using argv[0].
	(Old behavior is still available if you "make ar_with_ranlib",
	but it is not the default.)
	* ranlib.sh (new):  An alternative one-line
	shell implementation of ranlib.