Compare scrubbed strings when uncommitting LogUnits

A LogUnit is only uncommitted if the LogUnit's word matches what is
expected.  But a LogUnit never stores numbers, only scrubbed words that
replace numbers with a special character.  So when uncommitting, the
text from the TextView must also be scrubbed for the comparison to pass
correctly.

Bug: 9088919

Change-Id: I9b56f10afce6d0cc84eb9ead3b9a9b1e061ae39c