collections: Fix brace style

Author: Ulrik Sverdrup

src/libcollections/vec.rs

@@ -1841,32 +1841,27 @@ unsafe impl<'a, T: Sync> Sync for Drain<'a, T> {}
 unsafe impl<'a, T: Send> Send for Drain<'a, T> {}
 
 #[stable(feature = "rust1", since = "1.0.0")]
-impl<'a, T> Iterator for Drain<'a, T>
-{
+impl<'a, T> Iterator for Drain<'a, T> {
     type Item = T;
 
     #[inline]
-    fn next(&mut self) -> Option<T>
-    {
+    fn next(&mut self) -> Option<T> {
         self.iter.next().map(|elt|
             unsafe {
                 ptr::read(elt as *const _)
             }
         )
     }
 
-    fn size_hint(&self) -> (usize, Option<usize>)
-    {
+    fn size_hint(&self) -> (usize, Option<usize>) {
         self.iter.size_hint()
     }
 }
 
 #[stable(feature = "rust1", since = "1.0.0")]
-impl<'a, T> DoubleEndedIterator for Drain<'a, T>
-{
+impl<'a, T> DoubleEndedIterator for Drain<'a, T> {
     #[inline]
-    fn next_back(&mut self) -> Option<T>
-    {
+    fn next_back(&mut self) -> Option<T> {
         self.iter.next_back().map(|elt|
             unsafe {
                 ptr::read(elt as *const _)
@@ -1877,10 +1872,8 @@ impl<'a, T> DoubleEndedIterator for Drain<'a, T>
 
 #[unsafe_destructor]
 #[stable(feature = "rust1", since = "1.0.0")]
-impl<'a, T> Drop for Drain<'a, T>
-{
-    fn drop(&mut self)
-    {
+impl<'a, T> Drop for Drain<'a, T> {
+    fn drop(&mut self) {
         // exhaust self first
         while let Some(_) = self.next() { }