ispell.el: Use expanded values of personal dictionary for process restart checks.
(ispell-internal-change-dictionary):
Improve ispell process restart checks by using expanded values for ispell
personal dictionary and for related restart check.
(ispell-start-process):
* Remove apparently redundant code that seems better handled from
(ispell-internal-change-dictionary)
* No longer need to expand ispell personal dictionary, it is already
expanded.