problem with empty arguments of trigger procedure

Bug report - pgAdmin 1.14.3, Windows

Trigger definition is not shown properly when function contains "empty" arguments.

Example

Trigger definition:

CREATE TRIGGER test_trigger
BEFORE INSERT
ON test_table
FOR EACH ROW
EXECUTE PROCEDURE test_function('arg1', '', 'arg3');

is displayed in pgAdmin as:

CREATE TRIGGER test_trigger
BEFORE INSERT
ON test_table
FOR EACH ROW
EXECUTE PROCEDURE test_function('arg1', 'arg3');

MS