Code review fixes: CB label, trailing newlines

- PARSE_INS CB: rename 'RETRIEVE DATA (GET DATA)' -> 'RETRIEVE DATA'
  (CA = GET DATA, CB = RETRIEVE DATA are separate commands per TS 102 221)
- Add trailing newlines to sim.test.js + response_map.test.js

frontend/index.html

@@ -2613,7 +2613,7 @@ const PARSE_INS = {
 	'F2': {name:'GET STATUS', data:'lc'},
 	'CA': {name:'GET DATA', data:'none'},
 	'DA': {name:'PUT DATA', data:'lc'},
-	'CB': {name:'RETRIEVE DATA (GET DATA)', data:'le'},
+	'CB': {name:'RETRIEVE DATA', data:'le'},
 	'DB': {name:'SET DATA', data:'lc'},
 	'A2': {name:'SEARCH RECORD', data:'lc'},
 	'32': {name:'INCREASE', data:'lc'},