Fix missing comment (#719)
diff --git a/src/sys/fuchsia/handles.rs b/src/sys/fuchsia/handles.rs
index ee24566..269e272 100644
--- a/src/sys/fuchsia/handles.rs
+++ b/src/sys/fuchsia/handles.rs
@@ -16,7 +16,8 @@
/// Create a new `EventedHandle` which can be registered with mio
/// in order to receive event notifications.
///
- /// The underlying handle must not be
+ /// The underlying handle must not be dropped while the
+ /// `EventedHandle` still exists.
pub unsafe fn new(handle: mx_handle_t) -> Self {
EventedHandle {
handle: handle,