--- OLD/ppm/sldtoppm.c	Thu Jan  1 00:00:00 1970
+++ NEW/ppm/sldtoppm.c	Thu Jan  1 00:00:00 1970
@@ -106,8 +106,7 @@
 /*  EXTEND  --	Turn a smallint into an int with sign extension, whether
 		or not that happens automatically.  */
 
-static int extend(ch)
-  smallint ch;
+static int extend(smallint ch)
 {
     return ((int) ((ch & 0x80) ? (ch | ~0xFF) : ch));
 }