[NFC] Fix incorrect comment in std::function test

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@354537 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/default.pass.cpp b/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/default.pass.cpp
index 46c14ce..e89bafb 100644
--- a/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/default.pass.cpp
+++ b/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/default.pass.cpp
@@ -10,7 +10,7 @@
 
 // class function<R(ArgTypes...)>
 
-// explicit function();
+// function();
 
 #include <functional>
 #include <cassert>