Function            commit - flush disk buffers for to a handle

  Syntax              boolean commit(int handle);

  Prototype in        doshk.h

  Remarks             commit will flush all disk buffers associated with
                      a handle. If DOS 3.3 or later is active, DOS
                      Function 0x68 is used. Under pre-DOS 3.3 versions,
                      the handle is duplicated (DOS Function 0x45) and
                      subsequently closed (DOS Function 0x3E), flushing
                      all buffers for that handle.

  Return value        returns TRUE is successful, FALSE otherwise.