[in subversion/trunk/tools/buildbot/slaves/svn-x64-macosx]
* mkramdisk.sh, rmramdisk.sh: Use a better match pattern to check if
   a volume is already mounted. Do not double-check if the mount point
   exists (if it doesn't, we'd best fail early).


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1639169 13f79535-47bb-0310-9956-ffa450edef68