Replace the inlined information grabbing stuff for the configuration

adjustment feature (no --without-confadjust) with calls to a new helper script
`buildinfo.sh' which is both more flexible and already proofed to be more
robust against platform differences (latest ePerl and WML releases shipped
with it and no problems with it were discovered by the users). This mainly
fixes the recently occured ``sed: command garbled: ...'' problems.

PR: 2776, 2848


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@81959 13f79535-47bb-0310-9956-ffa450edef68