We now store a revision for the current version, so these counts must be bumped. see #16215.

This brings the XMLRPC revisions tests in line with the posts revisions tests in [UT1251].

git-svn-id: https://unit-tests.svn.wordpress.org/trunk@1252 4a5a2adb-35eb-4268-9a1b-fe04a4134342