Merge pull request #23 from akito0107/fix-spaghettiquery-infinite-loop

Fixed true_pattern regular expression of CheckSpaghettiQuery

src/list.cpp

@@ -771,7 +771,7 @@ void CheckSpaghettiQuery(Configuration& state,
                          const std::string& sql_statement,
                          bool& print_statement){
 
-  std::regex true_pattern(".*");
+  std::regex true_pattern(".+");
   std::regex false_pattern("pattern must not exist");
   std::regex pattern;