Tools: Use correct flags in mkdir

src/tools/map_extractor/System.cpp

@@ -108,7 +108,7 @@ void CreateDir(std::string const& path)
 #ifdef _WIN32
     _mkdir(path.c_str());
 #else
-    mkdir(path.c_str(), 777);
+    mkdir(path.c_str(), S_IRWXU | S_IRWXG | S_IRWXO); // 0777
 #endif
 }