Must document the fact that HvNAME may return 0 (Though I think it'd be cleaner to return NULL).

--- hv.h.orig   2005-07-08 13:48:31.000000000 +0300
+++ hv.h        2005-07-08 13:49:02.000000000 +0300
@@ -156,7 +156,8 @@
 =head1 Hash Manipulation Functions

 =for apidoc Am|char*|HvNAME|HV* stash
-Returns the package name of a stash.  See C<SvSTASH>, C<CvSTASH>.
+Returns the package name of a stash (may return 0).  See
+C<SvSTASH>, C<CvSTASH>.

 =for apidoc Am|void*|HeKEY|HE* he
 Returns the actual pointer stored in the key slot of the hash entry. The

--
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