Surround code bits with single-quotes

Author: jeongsoolee09

cpp/common/src/codingstandards/cpp/rules/unionkeywordused/UnionKeywordUsed.qll

@@ -34,6 +34,6 @@ module UnionKeywordUsed<UnionKeywordUsedConfigSig Config> {
   query predicate problems(Union u, string message) {
     not isExcluded(u, Config::getQuery()) and
     not u.getParentScope() instanceof TaggedUnion and
-    message = u.getName() + " is not a tagged union."
+    message = "'" + u.getName() + "' is not a tagged union."
   }
 }

cpp/misra/src/rules/RULE-8-3-2/BuiltInUnaryPlusOperatorShouldNotBeUsed.ql

@@ -18,4 +18,4 @@ import codingstandards.cpp.misra
 
 from UnaryPlusExpr e
 where not e.isFromUninstantiatedTemplate(_)
-select e, "Use of built-in unary + operator."
+select e, "Use of built-in unary '+' operator."