More -Wmissing-variable-declarations fixes.

In addition to adding `static' where possible:

- bin/date: Move `retval' into extern.h to make it visible to date.c.
- bin/ed: Move globally used variables into ed.h.
- sbin/camcontrol: Move `verbose' into camcontrol.h and fix shadow warnings.
- usr.bin/calendar: Remove unneeded variables.
- usr.bin/chat: Make `line' local instead of global.
- usr.bin/elfdump: Comment out unneeded function.
- usr.bin/rlogin: Use _Noreturn instead of __dead2.
- usr.bin/tset: Pull `Ospeed' into extern.h.
- usr.sbin/mfiutil: Put global variables in mfiutil.h.
- usr.sbin/pkg: Remove unused `os_corres'.
- usr.sbin/quotaon, usr.sbin/repquota: Remove unused `qfname'.

1 files changed, 1 insertions, 1 deletions

diff --git a/usr.sbin/ip6addrctl/ip6addrctl.c b/usr.sbin/ip6addrctl/ip6addrctl.c
index 7514522..6a730ff 100644
--- a/usr.sbin/ip6addrctl/ip6addrctl.c
+++ b/usr.sbin/ip6addrctl/ip6addrctl.c
@@ -59,7 +59,7 @@ struct policyqueue {
 	struct in6_addrpolicy pc_policy;
 };
 TAILQ_HEAD(policyhead, policyqueue);
-struct policyhead policyhead;
+static struct policyhead policyhead;
 
 static void usage(void);
 static void get_policy(void);