Bug #670: netmask displayed for a /32

Edwin Groothuis (edwin(at)mavetju(dot)org) reports a bug with a severity of 3
The lower the number the more severe it is.

Short Description
netmask displayed for a /32

Long Description
The documentation says (chapter 3.8.1):
The input format for this type is x.x.x.x/y where x.x.x.x is an IP address and y is the number of bits in the netmask. If the /y part is left off, then the netmask is 32, and the value represents just a single host. On display, the /y portion is suppressed if the netmask is 32.

This works fine in this case:
pmoanalysis=> select ipaddress from dhcpservers;
ipaddress
-----------
1.2.3.4
(1 row)

But the /y portion is shown in this case:
pmoanalysis=> select ipaddress||'a' from dhcpservers;
?column?
-------------
1.2.3.4/32a
(1 row)

I'm running pgsql version 7.2 under FreeBSD

Sample Code

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