Fix utf8_tests.py for systems which support putenv() but don't have the iso-8859-1 locale installed (by SKIPping the test).
Fix utf8_tests.py for systems which support putenv() but don't have the
iso-8859-1 locale installed (by SKIPping the test).

* subversion/tests/clients/cmdline/utf8_tests.py ():
  Test to see if we can run the client. If not, then SKIP the test.



git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@853357 13f79535-47bb-0310-9956-ffa450edef68

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