bin/46295: annoying behavior in units(1)

[dholland%eecs.harvard.edu@localhost]

>Number:         46295
>Category:       bin
>Synopsis:       annoying behavior in units(1)
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Apr 05 07:00:00 +0000 2012
>Originator:     David A. Holland
>Release:        NetBSD 6.99.3 (20120227)
>Organization:
>Environment:
System: NetBSD macaran 6.99.3 NetBSD 6.99.3 (MACARAN) #11: Mon Feb 27 17:12:40 
EST 2012 dholland@macaran:/usr/src/sys/arch/amd64/compile/MACARAN amd64
Architecture: x86_64
Machine: amd64
>Description:

macaran% units
531 units, 41 prefixes

You have: km/h
You want: mph 
conformability error
        10 m
        0.44704 m / sec
You have: km/h
You want: m
        * 10
        / 0.1
You have: ^D
macaran% 

Units treats "km/h" as kilometers per hecto-nothing, aka dekameters,
rather than as kilometers per hour, for which it's a very standard
abbreviation.

This would be one thing if "h" were some valid other unit, but
freestanding SI prefixes are not units.

>How-To-Repeat:

As above.

>Fix:

Dunno.