cbf5cf161c1be2f6bfdcee0a29f334564ac9435e
hiram
  Fri Sep 11 16:11:38 2026 -0700
silence claude noise refs #38290

diff --git src/hg/utils/automation/asmHubGc5Percent.pl src/hg/utils/automation/asmHubGc5Percent.pl
index 31d3b59b068..e46222c5735 100755
--- src/hg/utils/automation/asmHubGc5Percent.pl
+++ src/hg/utils/automation/asmHubGc5Percent.pl
@@ -1,30 +1,30 @@
 #!/usr/bin/env perl
 
 use strict;
 use warnings;
 use FindBin qw($Bin);
 use lib "$Bin";
 use AsmHub;
 
 my $argc = scalar(@ARGV);
 
 if ($argc != 3) {
   printf STDERR "usage: asmHubGc5Percent.pl asmId asmId.names.tab buildDir\n";
   printf STDERR "where asmId is the assembly identifier,\n";
   printf STDERR "and   asmId.names.tab is naming file for this assembly,\n";
-  printf STDERR "and   buildDir is the directory with bbi/asmId.gc5Base.bw.\n";
+  printf STDERR "and   buildDir is the directory with bbi/asmId.gc5Base|gcOnFly.bw.\n";
   exit 255;
 }
 
 my $asmId = shift;
 my $namesFile = shift;
 my $buildDir = shift;
 my $hgDownload = "https://hgdownload.soe.ucsc.edu";
 my $gc5Bw = "$buildDir/bbi/$asmId.gc5Base.bw";
 my $gcOnFly = 0;
 if ( ! -s $gc5Bw ) {
   $gc5Bw = "$buildDir/bbi/$asmId.gcOnFly.bw";
   $gcOnFly = 1;
 }
 
 if ( ! -s $gc5Bw ) {