Fix typo I just introduced.

llvm-svn: 252614
diff --git a/libcxx/test/std/utilities/function.objects/func.invoke/invoke.pass.cpp b/libcxx/test/std/utilities/function.objects/func.invoke/invoke.pass.cpp
index adb57ee..97b0b4d 100644
--- a/libcxx/test/std/utilities/function.objects/func.invoke/invoke.pass.cpp
+++ b/libcxx/test/std/utilities/function.objects/func.invoke/invoke.pass.cpp
@@ -40,7 +40,7 @@
 
 #include <functional>
 #include <type_traits>
-#include <utilty> // for std::move
+#include <utility> // for std::move
 #include <cassert>
 
 struct NonCopyable {