Apply style suggestions from code review

Co-Authored-By: Tomasz Drwięga <[email protected]>

frame/contracts/src/gas.rs

@@ -188,9 +188,9 @@ impl<T: Trait> GasMeter<T> {
 		self.gas_left
 	}
 
-	// Turn this GasMeter into a DispatchResult that contains the actually used gas
+	/// Turn this GasMeter into a DispatchResult that contains the actually used gas.
 	pub fn into_dispatch_result<R, E>(self, result: Result<R, E>) -> DispatchResultWithPostInfo where
-		E: Into<DispatchError>
+		E: Into<DispatchError>,
 	{
 		let post_info = PostDispatchInfo {
 			actual_weight: Some(self.gas_spent()),

frame/contracts/src/wasm/runtime.rs

@@ -154,7 +154,7 @@ pub enum RuntimeToken {
 	/// The given number of bytes is read from the sandbox memory and
 	/// is returned as the return data buffer of the call.
 	ReturnData(u32),
-	// Dispatched a call with the given weight.
+	/// Dispatched a call with the given weight.
 	DispatchWithWeight(Gas),
 	/// (topic_count, data_bytes): A buffer of the given size is posted as an event indexed with the
 	/// given number of topics.

frame/support/src/lib.rs

@@ -204,7 +204,7 @@ macro_rules! assert_err {
 	}
 }
 
-/// Assert an expression returns an error specified
+/// Assert an expression returns an error specified.
 ///
 /// This can be used on`DispatchResultWithPostInfo` when the post info should
 /// be ignored.