Bug#1028296: dpkg-query man page: unclear about -S reproducibility

[Jakub Wilk]

Package: dpkg
Version: 1.21.17

The dpkg-query(1) man page says about the -S option:
Hint: When machine parsing the output, it is customary to set the 
locale to C.UTF-8 to get reproducible results.

Assuming that "set the locale" means setting the LC_ALL environment 
variable, then that's not sufficient, because the output is still 
affected by LANGUAGE:

   $ LC_ALL=C.UTF-8 dpkg -S /bin/zgrep
   diversion by zutils from: /bin/zgrep
   diversion by zutils to: /bin/zgrep.gzip
   gzip, zutils: /bin/zgrep

   $ LANGUAGE=pl LC_ALL=C.UTF-8 dpkg -S /bin/zgrep
   ominięcie przez zutils z: /bin/zgrep
   ominięcie przez zutils do: /bin/zgrep.gzip
   gzip, zutils: /bin/zgrep

See also bug #748215.

--
Jakub Wilk