Changed "SHOW ENGINE ... STATUS" and "SHOW ENGINE ... MUTEX"
to require the PROCESS privilege, instead of SUPER.

Fixed by Damien Katz


mysql-test/r/show_check.result:
  Add test case result for Bug#32710
mysql-test/t/show_check.test:
  Add test case for Bug#32710
sql/sql_parse.cc:
  Require PROCESS privilege instead of SUPER.