Add some doc strings in the test suite.
Add some doc strings in the test suite.

* subversion/tests/cmdline/svntest/wc.py
  (StateItem.__init__): Document the attributes.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@873355 13f79535-47bb-0310-9956-ffa450edef68

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