Add a comment in certain scripts to point out the fact that the Perl

executable used by the script is determined by the myRun.ksh shell
script (or myManager.ksh for utils/manage_id_mapping_tables.pl).  This
is done this way to allow a user to change the perl that is used in
*one* place, rather than in each and every script.

misc-scripts/id_mapping/dump_by_seq_region.pl

 #!/usr/bin/env perl
+# Don't change the above line.
+# Change the PATH in the myRun.ksh script if you want to use another perl.
 
 =head1 NAME
 

misc-scripts/id_mapping/dump_cache.pl

 #!/usr/bin/env perl
+# Don't change the above line.
+# Change the PATH in the myRun.ksh script if you want to use another perl.
 
 =head1 NAME
 

misc-scripts/id_mapping/fake_stable_id_mapping.pl

 #!/usr/bin/env perl
+# Don't change the above line.
+# Change the PATH in the myRun.ksh script if you want to use another perl.
 
 =head1 NAME
 

misc-scripts/id_mapping/id_mapping.pl

 #!/usr/bin/env perl
+# Don't change the above line.
+# Change the PATH in the myRun.ksh script if you want to use another perl.
 
 =head1 NAME
 

misc-scripts/id_mapping/run.pl

 #!/usr/bin/env perl
+# Don't change the above line.
+# Change the PATH in the myRun.ksh script if you want to use another perl.
 
 =head1 NAME
 

misc-scripts/id_mapping/synteny_rescore.pl

 #!/usr/bin/env perl
+# Don't change the above line.
+# Change the PATH in the myRun.ksh script if you want to use another perl.
 
 =head1 NAME
 

misc-scripts/id_mapping/utils/manage_id_mapping_tables.pl

 #!/usr/bin/env perl
+# Don't change the above line.
+# Change the PATH in the myManager.ksh script if you want to use another perl.
 
 =head1 NAME