Remove + modifier from ws (whitespace) definition
Remove + modifier from ws (whitespace) definition

Having the + modifier in the ws (whitespace) definition restricts the
grammar because different modifiers (such as *) cannot be applied on ws
instances. In addition, all existing instances of ws in the grammar are
modified by +, so having + in the ws definition is also redundant.

caleb531/truthy,caleb531/truthy