Followup for r13276: Fix Windows build.
Followup for r13276: Fix Windows build.

* subversion/svnserve/main.c: Change #ifdef APR_HAVE_IPV6 to #if .. .
 


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@853352 13f79535-47bb-0310-9956-ffa450edef68

wbond/subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion