It’s been a good week for plays on Broadway. First “Faith Healer” recouped, and now Alan Bennett’s Tony frontrunner “The History Boys” has managed to make back its $1.85 million capitalization in less than seven weeks.“Boys” has sold vigorously since it opened to rave reviews April 23, grossing more than $650,000 and playing to 98% of capacity during the week ended Sunday. Show also scored high marks from the Tony nominators, racking up seven, including play, actor (Richard Griffiths) and director (Nicholas Hytner). Production, about the faculty and teachers at a British public school, preemed at the National Theater in London in 2004. Limited Broadway run shutters Sept. 3, with an already-completed movie version starring the same cast to be released thereafter.