Add ppmrainbow: to error messages, like other programs

git-svn-id: http://svn.code.sf.net/p/netpbm/code/trunk@3145 9d0c8265-081b-0410-96cb-a4ca84ce46f8

2 files changed, 4 insertions, 1 deletions

diff --git a/doc/HISTORY b/doc/HISTORY
index 08923f96..f092ca69 100644
--- a/doc/HISTORY
+++ b/doc/HISTORY
@@ -22,6 +22,9 @@ not yet  BJH  Release 10.82.00
 
               pnmpsnr: Add -targetX options.
 
+              ppmrainbow: Add "ppmrainbow: " to error messages, like other
+              programs.
+
               ppmpat: Fix bug - crash or junk output with -camo or -anticamo
               and no -color.  Introduced in Netpbm 10.78 (March 2017).
 
diff --git a/generator/ppmrainbow b/generator/ppmrainbow
index a4f90a09..4df3c297 100755
--- a/generator/ppmrainbow
+++ b/generator/ppmrainbow
@@ -49,7 +49,7 @@ sub doVersionHack($) {
 sub fatal($) {
     my ($msg) = @_;
 
-    print(STDERR "$msg\n");
+    print(STDERR "ppmrainbow: $msg\n");
     exit(1);
 }