[nsd-users] remove unnecessary declarations

[Jan Stary]

The following source files in the 4.1.3 tarball
declare extern int optind and extern char* optarg,
but those are already declared in the headers.
(Or is there a system where this is not the case?)

	Jan

diff -Nup -Nupr /tmp/nsd-4.1.13/nsd-checkconf.c /home/hans/src/nsd-4.1.13/nsd-checkconf.c
--- /tmp/nsd-4.1.13/nsd-checkconf.c	Fri Aug  5 16:04:30 2016
+++ /home/hans/src/nsd-4.1.13/nsd-checkconf.c	Thu Oct 20 21:59:47 2016
@@ -18,9 +18,6 @@
 #include "dname.h"
 #include "rrl.h"
 
-extern char *optarg;
-extern int optind;
-
 #define ZONE_GET_ACL(NAME, VAR, PATTERN) 		\
 	if (strcasecmp(#NAME, (VAR)) == 0) { 	\
 		quote_acl(PATTERN->NAME); 	\
diff -Nup -Nupr /tmp/nsd-4.1.13/nsd-checkzone.c /home/hans/src/nsd-4.1.13/nsd-checkzone.c
--- /tmp/nsd-4.1.13/nsd-checkzone.c	Wed May 28 08:51:23 2014
+++ /home/hans/src/nsd-4.1.13/nsd-checkzone.c	Thu Oct 20 22:00:24 2016
@@ -98,9 +98,6 @@ void sig_handler(int ATTR_UNUSED(sig))
 {
 }
 
-extern char *optarg;
-extern int optind;
-
 int
 main(int argc, char *argv[])
 {
diff -Nup -Nupr /tmp/nsd-4.1.13/nsd-control.c /home/hans/src/nsd-4.1.13/nsd-control.c
--- /tmp/nsd-4.1.13/nsd-control.c	Thu Sep 15 14:03:54 2016
+++ /home/hans/src/nsd-4.1.13/nsd-control.c	Thu Oct 20 21:55:46 2016
@@ -350,11 +350,6 @@ go(const char* cfgfile, char* svr, int argc, char* arg
 	return ret;
 }
 
-/** getopt global, in case header files fail to declare it. */
-extern int optind;
-/** getopt global, in case header files fail to declare it. */
-extern char* optarg;
-
 /** Main routine for nsd-control */
 int main(int argc, char* argv[])
 {
diff -Nup -Nupr /tmp/nsd-4.1.13/nsd-mem.c /home/hans/src/nsd-4.1.13/nsd-mem.c
--- /tmp/nsd-4.1.13/nsd-mem.c	Tue Aug 16 10:23:14 2016
+++ /home/hans/src/nsd-4.1.13/nsd-mem.c	Thu Oct 20 22:02:52 2016
@@ -282,9 +282,6 @@ void sig_handler(int ATTR_UNUSED(sig))
 {
 }
 
-extern char *optarg;
-extern int optind;
-
 int
 main(int argc, char *argv[])
 {
diff -Nup -Nupr /tmp/nsd-4.1.13/nsd.c /home/hans/src/nsd-4.1.13/nsd.c
--- /tmp/nsd-4.1.13/nsd.c	Tue May 31 15:53:47 2016
+++ /home/hans/src/nsd-4.1.13/nsd.c	Thu Oct 20 21:54:05 2016
@@ -411,9 +411,6 @@ bind8_stats (struct nsd *nsd)
 }
 #endif /* BIND8_STATS */
 
-extern char *optarg;
-extern int optind;
-
 int
 main(int argc, char *argv[])
 {