Update target.h

Author: coder137

buildcc/lib/target/include/target/target.h

@@ -93,7 +93,7 @@ class Target : public internal::BuilderInterface,
   friend class internal::CompileObject;
   friend class internal::LinkTarget;
 
-  friend class TargetGetter<Target>;
+  friend class internal::TargetGetter<Target>;
 
 private:
   void Initialize();