bash update killed my shells

[Jonathan Ryshpan]

On Tue, 2011-11-15 at 20:31 +0100, Michael Schwendt wrote:
> On Tue, 15 Nov 2011 19:49:32 +0100, MB (Maciek) wrote:
> 
> > A recent bash (that's my suspicion) update to bash-4.2.10-5.fc16.i686.rpm
> > wiped 'almost clean' my /etc/shells, leaving only nologin and dash behind,
> > breaking pkexec.
> > Anyone else seeing this or am I barking at the wrong tree here?
> 
> https://admin.fedoraproject.org/updates/FEDORA-2011-15725
> 
> Read through the comments.

What *should* be in /etc/shells (by default)?  Reading the comments
gives many examples of bad /etc/shells but no example of a good one.

jon