BUG #6150: commit_delay should have unit ms

The following bug has been logged online:

Bug reference:      6150
Logged by:          Christoph Anton Mitterer
Email address:      calestyo@scientia.net
PostgreSQL version: 0.9
Operating system:   Debian sid
Description:        commit_delay should have unit ms
Details:

Hi.

AFAIK form the documentation, the setting commit_delay, should have the base
unit "ms".

However, when doing something like
$ psql -c 'SELECT name,vartype,unit FROM pg_settings;' | grep commit_delay
I get:
could not change directory to "/root/test"
 commit_delay                    | integer |

No unit.

Cheers,
Chris.