Suppose we have a layout that looks like this...

This is a
long text

...and rotate it +45 degrees.  We get [hope you have fixed-width font]:

        a    
       . t
      s x
     i e
    . t
   s .
  i g
 h n
T o
 l

(Space replaced by "." for clarity.)  Notice that the second line starts lower
than the first.  What would one do to get...

        a t   
       . x
      s e
     i y
    . .
   s g
  i n
 h o
T l

... i.e., have a flush bottom?  (This is what Excel does and it does seem
to have its uses.)

Tricks, hacks, and work-arounds welcome.