diff -up netpbm-10.35.60/generator/ppmrainbow.ppmrainbowexit netpbm-10.35.60/generator/ppmrainbow
--- netpbm-10.35.60/generator/ppmrainbow.ppmrainbowexit	2009-02-15 13:04:35.000000000 +0100
+++ netpbm-10.35.60/generator/ppmrainbow	2009-02-26 18:48:34.000000000 +0100
@@ -21,15 +21,16 @@ GetOptions("width=i"   => \$Twid,
            "norepeat!" => \$norepeat,
            "verbose!"  => \$verbose);
 
+$! = 1;
 die "invalid width and/or height\n" unless $Twid >= 1 && $Thgt >= 1;
 
 my $verboseCommand = $verbose ? "set -x;" : "";
 
 if (@ARGV < 1) {
-    die("You must specify at least one color as an argument");
+    die("You must specify at least one color as an argument\n");
 } elsif (@ARGV < 2 && $norepeat) {
     die("With the -norepeat option, you must specify at least two colors " .
-        "as arguments.");
+        "as arguments.\n");
 }
 
 my @colorlist;
@@ -57,7 +58,7 @@ while (@colorlist >= 2) {
     my $rc = system("$verboseCommand pgmramp -lr $w $Thgt | " .
                     "pgmtoppm \"$colorlist[0]-$colorlist[1]\" >$outfile");
     if ($rc != 0) {
-        die("pgmramp|pgmtoppm failed.");
+        die("pgmramp|pgmtoppm failed.\n");
     }
     $widthRemaining -= $w;
     $n++;