Initializer is no longer mandatory?

jessica/lib/quasi-jessie.js.ts

Lines 188 to 191 in 633e565

    
               binding <- 
        
                 bindingPattern EQUALS assignExpr                ${(p, _, e) => ['bind', p, e]} 
        
               / defVar EQUALS assignExpr                        ${(p, _, e) => ['bind', p, e]} 
        
               / defVar;

There was a "Initializer is mandatory" comment as of Jun 5 2018
https://github.com/Agoric/Jessie/blame/a794135cad9bb82626068b13f0838a70169654de/src/tinyses.js#L276

	binding <-
	bindingPattern EQUALS assignExpr ${(p, _, e) => ['bind', p, e]}
	/ defVar EQUALS assignExpr ${(p, _, e) => ['bind', p, e]}
	/ defVar;