If there are any Night People reading these lines this morning, please keep a peeper peeled for disc jockey Jean Shepherd. If you see him, tell him to go home, all is forgiven. Tell him to shave first, though, huh? He's gotta meet a sponsor. Of course it's not likely there are any Night People reading these lines. If you're a true Night Person, this time of the morning you're stashed away sawing seventy in your cool, dark pad where you can't catch sunburn germs.