BUG #2901: missing alter table online help in psql

The following bug has been logged online:

Bug reference:      2901
Logged by:          Jens-Wolfhard Schicke
Email address:      j.schicke@asco.de
PostgreSQL version: PostgreSQL 8.2
Operating system:   Linux
Description:        missing alter table online help in psql
Details:

\h alter table

is missing the syntax for the command
alter table the_table alter column the_column type varchar(175);