CMake: Move to Tr::tr

Change-Id: I169da93b5184351cb915d4c198fd33318fcfe06f
Reviewed-by: hjk <hjk@qt.io>
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>

src/plugins/cmakeprojectmanager/builddirparameters.h

@@ -8,8 +8,7 @@
 #include <utils/environment.h>
 #include <utils/filepath.h>
 
-namespace CMakeProjectManager {
-namespace Internal {
+namespace CMakeProjectManager::Internal {
 
 class CMakeBuildSystem;
 
@@ -37,5 +36,4 @@ public:
     QStringList additionalCMakeArguments;
 };
 
-} // namespace Internal
-} // namespace CMakeProjectManager
+} // CMakeProjectManager::Internal