Experimental timings on Linux 2.0.30 suggest that flock() is faster

than fcntl().  This can be reversed if the beta shows problems with
it.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@78915 13f79535-47bb-0310-9956-ffa450edef68