removed white spaces in constants

src/r/r.ts

@@ -79,11 +79,11 @@ export const language = <languages.IMonarchLanguage>{
 		'TRUE',
 		'NA',
 		'Inf',
-		'NaN ',
+		'NaN',
 		'NA_integer_',
 		'NA_real_',
 		'NA_complex_',
-		'NA_character_ ',
+		'NA_character_',
 		'T',
 		'F',
 		'LETTERS',