Further clarify a docstring.  No functional change.

* subversion/tests/cmdline/externals_tests.py
  (externals_test_setup): Use more specific metasyntactic variables.
    Correct a syntax error in the non-relative URLs.

git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/pristines-on-demand@1897399 13f79535-47bb-0310-9956-ffa450edef68
1 file changed