Fix /say command so it complains when it gets no arguments; Fix typos
Fix /say command so it complains when it gets no arguments; Fix typos

'/say' now reports the appropriate error to the user invoking the
command instead of broadcasting a 'SERVER:' message with no detail.

kongr45gpen/bzflag-import-1,kongr45gpen/bzflag-import-1,kongr45gpen/bzflag-import-1,kongr45gpen/bzflag-import-1,kongr45gpen/bzflag-import-1,kongr45gpen/bzflag-import-1