Followup to r1422706, tweak getopt_tests for "svn --version" change.
Followup to r1422706, tweak getopt_tests for "svn --version" change.

* subversion/tests/cmdline/getopt_tests.py
  (del_lines_res): Ignore plaintext and blank lines.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1422818 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion