Auto-increment column name not extracted correctly in dbscripts_get_table_increment causing warning "Undefined offset: 1"

The auto-increment field name is not extracted correctly on line 1499 of dbscripts.module. The symptom is the error message:
PHP Notice: Undefined offset: 1 in /home/allan/dbscripts/dbscripts.module on line 1505
The problem is that the -i for grep causes it to find the AUTO_INCREMENT=nnn line, and "exec" returns the last line that it finds. The -i was probably added due to http://drupal.org/node/561234 but in this case, line 1499 should be changed from:
$id_string = exec("grep -i 'auto_increment' $branch_location/tables/$table.sql");
to instead read:
$id_string = exec("grep 'auto_increment' $branch_location/tables/$table.sql");
so that it doesn't find the AUTO_INCREMENT=nnnn at the end of the table definition.