Merge r1392120, r1392122, r1392150 from trunk:

Fix shell errors when trying to AC_MSG_RESULT() for --with-module.
(The change to IFS hosed any AC_MSG_foo() invocations.)

It is easy enough to reorder the reset of IFS and the AC_MSG_RESULT()
invocation, but there's a big stretch of shell code where AC_MSG_foo()
might be useful someday, so get rid of the commas at the start and
leave IFS alone and AC_MSG_foo() at will.


fix bug in r1392120: replace ALL commas

--with-module: Fix failure to integrate them into some existing
module directories.

modules/config?.m4 needs to run after the modules/*/config?.m4.
Otherwise, modules.mk as created for --with-module gets wiped
out first.

PR: 40097

Submitted by: trawick
Reviewed/backported by: jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1436908 13f79535-47bb-0310-9956-ffa450edef68