spelling: parameter

Signed-off-by: Josh Soref <[email protected]>

Author: jsoref

swift/ql/lib/codeql/swift/dataflow/internal/DataFlowDispatch.qll

@@ -191,7 +191,7 @@ class PropertyObserverCall extends DataFlowCall, TPropertyObserverCall {
     result = observer.getBase()
     or
     // TODO: This is correct for `willSet` (which takes a `newValue` parameter),
-    // but for `didSet` (which takes an `oldValue` paramter) we need an rvalue
+    // but for `didSet` (which takes an `oldValue` parameter) we need an rvalue
     // for `getBase()`.
     i = 0 and
     result = observer.getSource()