Follow-up to r26993.
Follow-up to r26993.

* aclocal.m4:  s/configure.in/configure.ac/ in comments.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion