fix minor style nit

chrome/app/google_update_client.cc

Index: chrome/app/google_update_client.cc
diff --git a/chrome/app/google_update_client.cc b/chrome/app/google_update_client.cc
index aa12dad76930224de244788d8974cfdad2ec4d93..1c8c2dfe5d2c592b2afe66b626e4a8a97be2ef3a 100755
--- a/chrome/app/google_update_client.cc
+++ b/chrome/app/google_update_client.cc
@@ -117,8 +117,7 @@ bool GoogleUpdateClient::Init(const wchar_t* client_guid,
       ret = true;
     } else {
       std::wstring key(google_update::kRegPathClients);
-      key.append(L"\\");
-      key.append(guid_);
+      key.append(L"\\" + guid_);
       if (client_util::GetChromiumVersion(dll_path_, key.c_str(), &version_))
         ret = true;
     }
@@ -130,4 +129,3 @@ bool GoogleUpdateClient::Init(const wchar_t* client_guid,
   return ret;
 }
 }  // namespace google_update
-