Mike Fleetwood authored Oct 27, 2016 and Curtis Gedak committed Dec 12, 2016

FileSystem::resize() (and derived) is only ever called from a single
location and always with the fill_partition argument supplied [1].
Therefore providing a default for the argument is unnecessary.  So
remove it.

[1] Since these two commits from 2006-06-17, before GParted 0.3.0, which
    added resize_filesystem() and maximize_filesystem() methods to wrap
    calls to p_filesystem->resize() into a single location:

    08245cd0
    cleanups in the core and the fs'es (resize)

    2d7fb570
    more cleanups in the core and the fs'es (these changelogs are getting