Hm, actuallly ... move the test log dir creation to the build script.

[in tools/buildbot/slaves/svn-x64-macosx]
* svncheck.sh: Remove chreation of the source .test-logs directory.
* svnbuild.sh: (Re)create said directory before doing anything else.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1639623 13f79535-47bb-0310-9956-ffa450edef68