De-duplicate the 'svn-check-*' targets of Makefile.svn.  If we're going to use GNU-make-isms, we may as well get some good use out of them.
De-duplicate the 'svn-check-*' targets of Makefile.svn.  If we're going
to use GNU-make-isms, we may as well get some good use out of them.

* tools/unix-build/Makefile.svn
  (): Move PARALLEL to top of Makefile to make it more obvious that a
   user can override it from the command line.
  (svn-check-neon, svn-check-serf, svn-check-local, svn-check-svn):
   Move most of the logic into...
  (do_check): New macro.  Functionally equivalent, except we now use mv
   instead of cp with the log files, to prevent copying an old one to a
   new destination.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1041719 13f79535-47bb-0310-9956-ffa450edef68

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