gnats 4.0 beta bug fix for 'send-pr -d']

[Mel Hatzis]

'send-pr -d' makes use of the GNATSDB environment variable
to specify the database to the underlying gnats programs.
This doesn't work due to a bug in client.c which ends up
overriding the database defined by GNATSDB with 'default'.

I've included a patch below.

--
Mel Hatzis
Juniper Networks, Inc.

Index: client.c
===================================================================
RCS file: /cvsroot/gnats/gnats/gnats/client.c,v
retrieving revision 1.42
diff -b -u -p -r1.42 client.c
--- client.c    2 Dec 2001 18:37:47 -0000       1.42
+++ client.c    8 Jul 2002 23:55:14 -0000
@@ -910,7 +910,8 @@ scanEnv (char **user, char **passwd, cha

   if (*database == NULL)
     {
-      *database = xstrdup ("default");
+      *database = (evar == NULL || evar[0] == '\0') ? xstrdup ("default")
+                                                    : xstrdup (evar);
     }

   if (*port == -1)