* subversion/svnserve/serve.c (update): Silence a warning about conversion
   of apr_uint64_t to svn_boolean_t by explicitly making the argument to
   svn_log__update a boolean expression.
  (update, switch_cmd): Incidentally, replace the cases where we had
   checks like this: "variable == TRUE" to "variable != FALSE" instead,
   since the latter is more robust given C's truth-value rules.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1476563 13f79535-47bb-0310-9956-ffa450edef68