human
Solve the following python programming problem given the following code:
@ internationalizeDocstring 
def contributors(self, irc, msg, args, cb, nick) : 
    "<plugin> [<nick>]

        Replies with a list of people who made contributions to a given plugin.
        If <nick> is specified, that person's specific contributions will
        be listed.  Note: The <nick> is the part inside of the parentheses
        in the people listing.
        " 
    def getShortName(authorInfo) : 
        "
            Take an Authors object, and return only the name and nick values
            in the format 'First Last (nick)'.
            " 
        return ('%(name)s (%(nick)s)' % authorInfo.__dict__) 
def buildContributorsString(longList) : 
        '
            Take a list of long names and turn it into :
            shortname[, shortname and shortname].
            ' 
        L = [getShortName (n) for n in longList] 
        return format ('%L', L) 
def sortAuthors() : 
        "
            Sort the list of 'long names' based on the number of contributions
            associated with each.
            " 
        L = list (module.__contributors__.items ()) 
        def negativeSecondElement(x) : 
            return (- len (x [1])) 
utils.sortBy (negativeSecondElement, L) 
        return [t [0] for t in L] 
def buildPeopleString(module) : 
        '
            Build the list of author + contributors (if any) for the requested
            plugin.
            ' 
        head = (_ ('The %s plugin') % cb.name ()) 
        author = _ ('has not been claimed by an author') 
        conjunction = _ ('and') 
        contrib = _ ('has no contributors listed.') 
        hasAuthor = False 
        hasContribs = False 
        if hasattr (module, '__author__') : 
            if (module.__author__ != supybot.authors.unknown) : 
                author = (_ ('was written by %s') % utils.web.mungeEmail (str (module.__author__))) 
                hasAuthor = True 
if hasattr (module, '__contributors__') : 
            contribs = sortAuthors () 
            if hasAuthor : 
                try : 
              ...

    
    

    Fix the buggy line: nick = ircutils.toLower (args)
assistant
#Here is Python program to fix the buggy line: nick = ircutils.

nick = ircutils.toLower (nick)