===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/awk/main.c,v
retrieving revision 1.47
retrieving revision 1.48
diff -u -r1.47 -r1.48
--- src/usr.bin/awk/main.c	2020/12/18 21:36:24	1.47
+++ src/usr.bin/awk/main.c	2021/07/27 18:28:19	1.48
@@ -1,4 +1,4 @@
-/*	$OpenBSD: main.c,v 1.47 2020/12/18 21:36:24 millert Exp $	*/
+/*	$OpenBSD: main.c,v 1.48 2021/07/27 18:28:19 millert Exp $	*/
 /****************************************************************
 Copyright (C) Lucent Technologies 1997
 All Rights Reserved
@@ -111,9 +111,7 @@
 	/* wart: t=>\t */
 	if (p[0] == 't' && p[1] == '\0')
 		return "\t";
-	else if (p[0] != '\0')
-		return p;
-	return NULL;
+	return p;
 }
 
 static char *
@@ -189,8 +187,6 @@
  			break;
 		case 'F':	/* set field separator */
 			fs = setfs(getarg(&argc, &argv, "no field separator"));
-			if (fs == NULL)
-				WARNING("field separator FS is empty");
 			break;
 		case 'v':	/* -v a=1 to be done NOW.  one -v for each */
 			vn = getarg(&argc, &argv, "no variable name");