Teach davautocheck.sh to run individual tests even when the build dir is not the source dir.
Teach davautocheck.sh to run individual tests even when the build dir is not
the source dir.

* subversion/tests/cmdline/davautocheck.sh
  Set ABS_SRCDIR to the root of the source tree that this script is in. When
  not running a whole "make check", use ABS_SRCDIR rather than ABS_BUILDDIR
  to locate the Python test script to run.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@904041 13f79535-47bb-0310-9956-ffa450edef68

wbond/subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion