Fix shell errors when trying to AC_MSG_RESULT() for --with-module.

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.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1392120 13f79535-47bb-0310-9956-ffa450edef68