[libsigcplusplus/libsigc++-2-8] Fix tiny typo in a comment.

[Murray Cumming <murrayc src gnome org>]

commit b744d5d12669cfb95c4af87a505799fe3ab399e8
Author: Murray Cumming <murrayc murrayc com>
Date:   Mon Mar 7 10:26:20 2016 +0100

    Fix tiny typo in a comment.

 tests/test_slot_disconnect.cc |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/tests/test_slot_disconnect.cc b/tests/test_slot_disconnect.cc
index a1d6834..4044135 100644
--- a/tests/test_slot_disconnect.cc
+++ b/tests/test_slot_disconnect.cc
@@ -31,7 +31,7 @@ int main(int argc, char* argv[])
   if (!util->check_command_args(argc, argv))
     return util->get_result_and_delete_instance() ? EXIT_SUCCESS : EXIT_FAILURE;
 
-  //Note that sigc::ptr_fun() creates a sig::pointer_functor0.
+  //Note that sigc::ptr_fun() creates a sigc::pointer_functor0.
   sigc::slot<void> theSlot(sigc::ptr_fun(&Foo));
   theSlot();
   util->check_result(result_stream, "Foo");