Function max_length

__tests__/terminal.spec.js:6422–6427

()

                numChars: 14
            });
            function max_length() {
                var lines = term.signature().split('\n');
                return Math.max.apply(null, lines.map(function(line) {
                    return $.terminal.length(line);
                }));
            }
            it('should return space', function() {
                expect(term.signature()).toEqual('');
            });