Replaced usage of PendingCommandFactory in plot tool with usage of ExPendingCommandFactory2.Util.single.
Replaced usage of PendingCommandFactory in plot tool with usage of
ExPendingCommandFactory2.Util.single.

Signed-off-by: Jakob Brandsborg Ehmsen <387ed33cc9ebf98b733caa2520baacd616b28aa5@gmail.com>
jakobehmsen/dynamake