[LENNY] Updated bash 3.2 with official patches 052 to 055.

Whilst the previous version mainly used patch backports by third-parties
as they became available, this version includes the official upstream
patches.

Even though our checks show that the previous version's patches
are very similar to the upstream patches, there are some subtle differences.
As these subtle differences could mean that certain security fixes have not
been carried out correctly, we strongly advise upgrading to this version.

Signed-off-by: Stephan Peijnik <speijnik@anexia-it.com>