handle dump of RunSummary with and without '\n' and/or '\r' properly.

src/dump_header.cpp

@@ -248,6 +248,8 @@ int dump_header_root(const std::string fileName, const bool summary, const bool
       tstr = static_cast<TObjString*>(runSum->At(i));
       str = tstr->String();
       std::cout << str;
+      if (!str.Contains("\r") && !str.Contains("\n"))
+        std::cout << std::endl;
     }
   }