Is there anything more heart-melting than some friendly man-on-man love? Especially when it’s between two unlikely dudes, like Tracy Morganand Bruce Willis, who have a buddy movie, “Cop Out,” opening tonight. Apparently, the two have become super bromantic and are even “finishing one another’s sentences and crowing repeatedly about the love on the set,” during their press junket to promote the flick. Aw! Let’s feel the man love with these famous guys who like to hug it out …