--- ray/src/px/pextrem.c	2005/06/02 18:13:47	2.11
+++ ray/src/px/pextrem.c	2019/07/19 17:37:56	2.14
@@ -1,14 +1,13 @@
 #ifndef lint
-static const char	RCSid[] = "$Id: pextrem.c,v 2.11 2005/06/02 18:13:47 greg Exp $";
+static const char	RCSid[] = "$Id: pextrem.c,v 2.14 2019/07/19 17:37:56 greg Exp $";
 #endif
 /*
  * Find extrema points in a Radiance picture.
  */
 
-#include  <stdio.h>
 #include  <math.h>
-#include  <string.h>
 
+#include  "rtio.h"
 #include  "platform.h"
 #include  "color.h"
 #include  "resolu.h"
@@ -29,7 +28,7 @@ headline(			/* check header line */
 	void	*p
 )
 {
-	char	fmt[32];
+	char	fmt[MAXFMTLEN];
 	double	d;
 	COLOR	ctmp;
 
@@ -112,11 +111,11 @@ main(
 		}
 	}
 	free((void *)scan);
-	printf("%d %d\t%e %e %e\n", xmin, ymin,
+	printf("%d %d\t%.2e %.2e %.2e\n", xmin, ymin,
 			colrval(cmin,RED)/colval(expos,RED),
 			colrval(cmin,GRN)/colval(expos,GRN),
 			colrval(cmin,BLU)/colval(expos,BLU));
-	printf("%d %d\t%e %e %e\n", xmax, ymax,
+	printf("%d %d\t%.2e %.2e %.2e\n", xmax, ymax,
 			colrval(cmax,RED)/colval(expos,RED),
 			colrval(cmax,GRN)/colval(expos,GRN),
 			colrval(cmax,BLU)/colval(expos,BLU));