Changes the current directory. 
    
 
  
 
     
    Syntax:
 
       
      call "CBL_CHANGE_DIR" using     pathname
                      returning status-code
 
    On Entry:
 
       
       
      
 
           
           
           
             
              | pathname | Relative or absolute pathname terminated by space or null (x"00"). This must be no longer than the number of characters allowed by your operating system and must be valid from the directory that is current when the routine is called. |