--- ray/src/px/ra_ppm.c	1993/07/12 12:41:15	2.5
+++ ray/src/px/ra_ppm.c	1994/02/27 10:17:07	2.7
@@ -80,7 +80,7 @@ char  *argv[];
 		exit(1);
 	}
 	if (i == argc-2 && freopen(argv[i+1], "w", stdout) == NULL) {
-		fprintf(stderr, "can't open output \"%s\"\n",
+		fprintf(stderr, "%s: can't open output \"%s\"\n",
 				progname, argv[i+1]);
 		exit(1);
 	}
@@ -99,6 +99,7 @@ char  *argv[];
 		ymax = scanint(stdin);
 		maxval = scanint(stdin);
 					/* put header */
+		newheader("RADIANCE", stdout);
 		printargs(i, argv, stdout);
 		fputformat(COLRFMT, stdout);
 		putchar('\n');
@@ -160,7 +161,6 @@ ppm2ra(getscan)		/* convert color Pixmap to Radiance p
 int  (*getscan)();
 {
 	COLR	*scanout;
-	register int	x;
 	int	y;
 						/* allocate scanline */
 	scanout = (COLR *)malloc(xmax*sizeof(COLR));