Play Is ClosingPITTSBURGH (AP) — A French sex farce, starring pornography film queen Linda Lovelace in her first stage role, apparently has folded in the wake of a poor box office draw.The play, ‘‘Pajama Tops” opened in Philadelphia last month, but closed a week early, presumably to allow the production to incorporate nude scenes which were not in the original script.The nude version was scheduled to open here Tuesday but a Nixon Theater spokesman said the play has been postponed indefinitely ‘'because the show ran out of money in Philadelphia.”Moe Stepte, owner of Philadelphia's Locust Theater, said *4Pajama Tops” didn’t do well there and that its box office was mediocre.It’s been disbanded as far as I know,” he added.Miss Lovelace was quoted in the Philadelphia Bulletin last week as saying the show needed nudity to be more realistic.She said there were many sunbathing scenes that would be more natural in the nude. “1 never sunbathe with a bathing suit on. Who does?” the paper quoted her as saying.Miss Lvelace was established as a star in the pornographic film “Deep Throat,” that has made over 55 million to date.