step5() removes a final -e if m() > 1, and changes -ll to -l if
        m() > 1.

def step5(self):
        """step5() removes a final -e if m() > 1, and changes -ll to -l if
        m() > 1.
        """
        self.j = self.k
        if self.b[self.k] == "e":
            a = self.m()
            if a > 1 or (a == 1 and not self.cvc(self.k - 1)):
                self.k = self.k - 1
        if self.b[self.k] == "l" and self.doublec(self.k) and self.m() > 1:
            self.k = self.k - 1