Fix blame tests 10 & 11 on Windows.
Fix blame tests 10 & 11 on Windows.

* subversion/tests/cmdline/log_tests.py
  (merge_history_repos): When setting up the repository, do all the writes
   and appends to the files binary so that different eol-styles don't cause
   lines to changes which we don't want to change.
   Also, don't put a new line in the commit message. On Windows, everything
   that comes after it will be ignored, including the username & password
   options.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion