In ap_bclose(), we always use ap_pclosesocket() when the fd

In ap_bclose(), we always use ap_pclosesocket() when the fd
points to a socket and ap_bclosef() it it's a file (we stay
aware of Windows handles however). Also, we stay consistent
and use closesocket() whenever we wish to close a socket
directly. For Unix, closesocket() is simply a macro define to
close, but it makes a big difference for other OSs.

PR: 22805
Obtained from:
Submitted by:	bnicholes, jeff
Reviewed by:

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@101492 13f79535-47bb-0310-9956-ffa450edef68