Bug#776954: Add /etc/bash_completion.d to obsolete-paths

[Alexandre Detiste <alexandre.detiste@gmail.com>]

http://anonscm.debian.org/cgit/lintian/lintian.git/commit/?id=bdb25ca8b3f5cb47bd7f5b1dfc22365e2234fcac

>  If you're a package maintainer, you're encouraged to
>  use dh_bash-completion(1), which will take care of installing third-party
>  completions into the appropriate directory.
> 
>  -- David Paleino <dapal@debian.org>  Sun, 10 Apr 2011 15:33:19 +0200

This doesn't seems to be actually the case:

tchet@antec:~/git/game-data-packager$ grep etc /usr/bin/dh_bash-completion 
        my $bc_dir = "$tmp/etc/bash_completion.d";

Should be easy to fix in bash-completion before a new lintian is released.

Alexandre Detiste