Fix typo

clippy_lints/src/await_holding_lock.rs

@@ -10,7 +10,7 @@ declare_clippy_lint! {
     /// **What it does:** Checks for calls to await while holding a
     /// non-async-aware MutexGuard.
     ///
-    /// **Why is this bad?** The Mutex types found in syd::sync and parking_lot
+    /// **Why is this bad?** The Mutex types found in std::sync and parking_lot
     /// are not designed to operate in an async context across await points.
     ///
     /// There are two potential solutions. One is to use an asynx-aware Mutex