Bug#164889: md5sum <FILE produces spurious ` -' in output

[Ian Jackson <ian@davenant.greenend.org.uk>]

Package: dpkg
Version: 1.10.4

-davenant:~> dpkg -S /usr/bin/md5sum
dpkg: /usr/bin/md5sum
-davenant:~> dpkg -l dpkg
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name           Version        Description
+++-==============-==============-============================================
ii  dpkg           1.6.15         Package maintenance system for Debian
-davenant:~> md5sum </dev/null 
d41d8cd98f00b204e9800998ecf8427e
-davenant:~> md5sum </dev/null | cat -vet
d41d8cd98f00b204e9800998ecf8427e$
-davenant:~> 

but

-anarres:~> dpkg -S /usr/bin/md5sum
dpkg: /usr/bin/md5sum
-anarres:~> dpkg -l dpkg
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name           Version        Description
+++-==============-==============-============================================
ii  dpkg           1.10.4         Package maintenance system for Debian
-anarres:~> md5sum </dev/null 
d41d8cd98f00b204e9800998ecf8427e  -
-anarres:~> md5sum </dev/null | cat -vet
d41d8cd98f00b204e9800998ecf8427e  -$
-anarres:~> 

This breaks any scripts and other programs which rely on feeding
md5sum files on stdin to get it to print out just the hash with no
clutter etc.

Ian.