now live in a single directory. Use forloop.m4 in testsuite.
* checks/incl.m4, checks/foo, checks/wrapfifo.m4: Move from
here...
* examples/incl.m4, examples/foo, examples/wrapfifo.m4: ...to
here.
* checks/Makefile.in (DISTFILES): Don't distribute moved files.
* examples/Makefile.am (EXTRA_DIST): Distribute new files.
* checks/check-them: Avoid s/// when filename is in pattern.
* examples/forloop.m4: Fix to match documentation.
* doc/m4.texinfo (Include, Undivert, Incompatibilities): Reflect
new locations.
(Loops, Format): Actually use forloop.m4 in tests.
