Disables insertion of a null character
	 x"00" before data characters whose value is less than x"20" in line sequential
	 files. 
  
	 
		Note: This function is not supported in JVM COBOL.
		
 
	  
 
	 Syntax:
 
		 
		call x"91" using result
                 function-code
                 parameter
 
	 Parameters:
 
		 
		 
		
 
			  
			  
			  
			  
				 
				  |  | Using call prototype (see 
					 Key) | Picture | 
 
			 
 
			  
				 
				  | result | cblt-x1-compx | pic x comp-x. | 
 
				 
				  | function-code | cblt-x1-compx | pic x comp-x. | 
 
				 
				  | parameter | FD name of file | 
 
			 
 
		  
 
 
	 On Entry:
 
		 
		 
		
 
			  
			  
			  
				 
				  | function-code | Value 47 | 
 
				 
				  | parameter | The file-identifier
					 specified in the File Description (FD). Must refer to a line sequential file
					 which is currently open. | 
 
			 
 
		  
 
 
	 On Exit:
 
		 
		 
		
 
			  
			  
			  
				 
				  | result | Set to zero if the call
					 was successful, nonzero otherwise. | 
 
			 
 
		  
 
 
	 
Comments:
This function lets you disable null insertion for individual files regardless of the setting of the run-time switch N.
This function cannot be used if the file is declared as EXTERNAL.