Bug#295077: Build-Depends on gettext not strict enough

[Wolfram Gloger <wg@malloc.de>]

Package: apt
Version: 0.5.28.4

I was trying to build the latest apt from sources today.  I happened
to have gettext_0.11.5-1 installed (the minimum version from
Build-Depends), and the apt build failed because xgettext did not
support the --msgid-bugs-address switch.

Upgrading to gettext-0.14.1 lets apt build and run correctly.
I do not know which exact gettext version added that switch,
but the NEWS file first mentions it in "Version 0.12".

I would suggest that apt's Build-Depends is tightened to
gettext (>= 0.12).

Regards,
Wolfram.