message: Fix find_installed()
diff: @@ -32,7 +32,7 @@ namespace vcpkg
  StatusParagraphs::const_iterator StatusParagraphs::find_installed(const std::string& name, const Triplet& target_triplet) const
  {
  const const_iterator it = find(name, target_triplet);
  - if (it != end() && (*it)->want == Want::INSTALL)
  + if (it != end() && (*it)->want == Want::INSTALL && (*it)->state == InstallState::INSTALLED)
  {
  return it;
  }
  