Some minor cleanups:

  1. Rename worker_size, since this could easily be
     confused with the actual MPM worker struct stuff.
  2. Remove superflous ()s in the || test
  3. Add superflous () in the pointer adjusting :)
     Even though C prec rules make it clear what we
     are doing, make it painfully obvious. Remove
     unrequired temp var.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@574931 13f79535-47bb-0310-9956-ffa450edef68