Fix double space in doc string.
Fix double space in doc string.

Refs #9995

mvdriel/cakephp,mvdriel/cakephp,ADmad/cakephp,ADmad/cakephp,CakeDC/cakephp,tenkoma/cakephp,cakephp/cakephp,CakeDC/cakephp,dakota/cakephp,cakephp/cakephp,CakeDC/cakephp,garethellis36/cakephp,ndm2/cakephp,ADmad/cakephp,tenkoma/cakephp,tenkoma/cakephp,berrygoudswaard/cakephp,ndm2/cakephp,dakota/cakephp,ADmad/cakephp,cakephp/cakephp,mvdriel/cakephp,petteyg/cakephp,garethellis36/cakephp,davidyell/cakephp,petteyg/cakephp,tenkoma/cakephp,davidyell/cakephp,petteyg/cakephp,cakephp/cakephp,garethellis36/cakephp,petteyg/cakephp,berrygoudswaard/cakephp,dakota/cakephp,ndm2/cakephp,ndm2/cakephp,mvdriel/cakephp,garethellis36/cakephp,davidyell/cakephp,CakeDC/cakephp,dakota/cakephp,berrygoudswaard/cakephp