FREEPBX-1953 #QA #comment Fixed callback to use new string validation scheme
FREEPBX-1953 #QA #comment Now uses global helper function module_get_field_size() instead
Merge pull request #1 in FREEPBX/callback from ~COVERUP0204/callback:release/2.11 to release/2.11

* commit '1bac7358c60aa2ab576ed282b8d39bf8e19a913f':
  FREEPBX-1953 #QA #comment Now uses global helper function module_get_field_size() instead
  FREEPBX-1953 #QA #comment Fixed callback to use new string validation scheme