fix doc

diff --git a/bin/part_pkg-bulk_change b/bin/part_pkg-bulk_change
index aecfea5..64670de 100755 (executable)
--- a/bin/part_pkg-bulk_change
+++ b/bin/part_pkg-bulk_change
@@ -50,7 +50,7 @@ cust_main-bulk_change
 
 =head1 DESCRIPTION
 
-Command-line tool to change the payby field for a group of customers.
+Command-line tool to change a set of package definitions.
 
 -r: recurring package definitions only