* subversion/tests/cmdline/README:  mention how to test with serf instead of neon.
* subversion/tests/cmdline/README:  mention how to test with serf instead of neon.

git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@876243 13f79535-47bb-0310-9956-ffa450edef68

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