Reduce use of snmp_errno - fix memory leak, unused vars, and unset var.


git-svn-id: file:///home/hardaker/lib/sf-bkups/net-snmp-convert-svnrepo/trunk@2835 06827809-a52a-0410-b366-d66718629ded
diff --git a/apps/encode_keychange.c b/apps/encode_keychange.c
index ade008f..48a3244 100644
--- a/apps/encode_keychange.c
+++ b/apps/encode_keychange.c
@@ -411,7 +411,7 @@
 // this defined for HPUX aCC because the aCC doesn't drop the
 // snmp_parse_args.c functionality if compile with -g, PKY
 
-void usage()
+void usage(void)
 {
     usage_to_file(stdout);    
 }