Revision 332914

- backport upstream commit r1528718 into mod_dav [1].
  This is needed because of a bug [2] due to an incorrect
  implementation of RFC 4918.
  The symptoms are a failure to copy a svn tree via DAV:

- fix package installation with old pkg tools (create empty
  folders in pkg-plist even staging is enabled)

[1] http://svn.apache.org/viewvc?view=revision&revision=1528718
[2] https://issues.apache.org/bugzilla/show_bug.cgi?id=55306

PR:		ports/183685
Submitted by:	Pietro Cerutti <gahr@FreeBSD.org>