NAME:     sync - fight paranoia, commit cache to disk 

SYNOPSYS: 
       #include <unistd.h>  [here we may find the system's sync()]

       int sync(void); 

RETURNS: 
        sync() always returns 0

IMPLEMENTATION:
	sync() uses DosShutdown(0). Commiting buffers may take 
           several minutes, assuming a heavily loaded system.

