Expand some doc strings in the test framework.
* subversion/tests/cmdline/svntest/actions.py
(run_and_verify_svn2): Document that line terminators are included in the
returned stdout and stderr.
* subversion/tests/cmdline/svntest/main.py
(run_command, wait_on_pipe, spawn_process, run_command_stdin, run_svn,
run_svnadmin, run_svnlook, run_svnsync, run_svnversion): Document that
line terminators are included in the returned stdout and stderr.
git-svn-id: http://svn.apache.org/repos/asf/subversion/trunk/subversion/tests/cmdline@903198 13f79535-47bb-0310-9956-ffa450edef68