One more portability fix for APACI shadow tree support: Swap order of awk and

sed in top-level configure script to avoid sed fails on some platforms (for
instance SunOS 4.1.3 and NCR SysV) because of the non-newline-termined output
of Awk.

PR: 2729


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@81832 13f79535-47bb-0310-9956-ffa450edef68