Mike Fleetwood authored Dec 08, 2012 and Curtis Gedak committed Mar 25, 2013

Add "cleared" to the bottom of list of file system formats available in
the Create new Partition dialog and in the Format to --> (file system
list) menu.  This clears existing file system signatures in the newly
created partitions and existing partitions respectively.

Bug #688882 - Improve clearing of file system signatures