Issue #3040274 by sarvjeetsingh, rishabhthakur, theotherlondon, alexpott,...

Issue #3040274 by sarvjeetsingh, rishabhthakur, theotherlondon, alexpott, kkalaskar, kiamlaluno, amarphule, gringoinc, ravi.shankar, davidhernandez, tim.plunkett: Fix grammar, spelling, and style of the code comments in FormBuilder::prepareForm()