Add multiline-ternary to unused rules

Author: robertrossmann

unused.js

@@ -67,6 +67,10 @@ module.exports = {
     // Unused, too restrictive.
     'lines-around-comment': 0,
 
+    // Enforce newlines between operands of ternary expressions
+    // Unused, ternaries are usually simple enough that they are OK to be written on a single line.
+    'multiline-ternary': 0,
+
     // Disallow continue
     // Unused, continue seems to be quite useful.
     'no-continue': 0,