bug#13634: 24.2; trailing whitespace in calendar (enhancement)

["Drew Adams" <drew.adams@oracle.com>]

> > (and if there isn't much risk that some user will then
> > complain that his background face highlighting suddenly 
> > becomes jagged).
> 
> The parenthetical remark is a good point, a priori.
> Is that really the effect?

A quick check from emacs -Q indicates that even without the removal of trailing
whitespace the rightmost column is not constant, i.e., there is no right-padding
with whitespace to the rightmost calendar column.

The month name seems to be padded, but one eolumn less than what full weeks are
padded.  And both a partial week and a full week are followed by only one space
(i.e., no padding here to the rightmost column either).

So any potential jagged background problem would seem to be present with or
without trailing whitespace removal.