message: refactor(header): fix more ?Sized for 1.10
diff: @@ -39,14 +39,12 @@ impl<K: PartialEq, V> VecMap<K, V> {
  }
  #[inline]
  - pub fn get_mut<K2>(&mut self, key: &K2) -> Option<&mut V>
  - where K2: PartialEq<K> {
  + pub fn get_mut<K2: PartialEq<K> + ?Sized>(&mut self, key: &K2) -> Option<&mut V> {
  self.find(key).map(move |pos| &mut self.vec[pos].1)
  }
  #[inline]
  - pub fn contains_key<K2>(&self, key: &K2) -> bool
  - where K2: PartialEq<K> {
  + pub fn contains_key<K2: PartialEq<K> + ?Sized>(&self, key: &K2) -> bool {
  self.find(key).is_some()
  }
  @@ -67,8 +65,7 @@ impl<K: PartialEq, V> VecMap<K, V> {
  }
  #[inline]
  - fn find<K2>(&self, key: &K2) -> Option<usize>
  - where K2: PartialEq<K> + ?Sized {
  + fn find<K2: PartialEq<K> + ?Sized>(&self, key: &K2) -> Option<usize> {
  self.vec.iter().position(|entry| key == &entry.0)
  }
  }
  