Modified test for tzset to not rely on tm->tm_zone's existence.  Also added
sanity checks on tzname if HAVE_TZNAME defined.

Closes bug #1096244.  Thanks Gregory Bond.
diff --git a/Misc/ACKS b/Misc/ACKS
index 19e1ded..410b405 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -66,6 +66,7 @@
 Paul Boddie
 Matthew Boedicker
 David Bolen
+Gregory Bond
 Jurjen Bos
 Peter Bosch
 Eric Bouck