Fix the filtered characters list from console-log

In fffcaea1 ^M was added to the list of characters to filter from the
console-log output but, because of a typo in the regexp, the
character '-' was added to that list too and has been removed since
then.

Fixes bug #1194032

Change-Id: Ia02b0b4c7027cbd09a51042ca1b5d28890413626
(cherry picked from commit c651f4928c65407cff86a9f9efc046a0f76a9519)
Merge "Fix the filtered characters list from console-log" into stable/grizzly