conf: Use parameter instead of global in conf_nat()

conf_nat() takes a parameter @arg for the argument it's parsing.
However on error we print instead optarg, the getopt() global.  This
happens to be the same thing at the time of the call, but it's not the
right way to get to it.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/conf.c b/conf.c
index 4755a9f..6ab8efe 100644
--- a/conf.c
+++ b/conf.c
@@ -1049,7 +1049,7 @@ static void conf_nat(const char *arg, struct in_addr *addr4,
 	    !IN4_IS_ADDR_MULTICAST(addr4))
 		return;
 
-	die("Invalid address to remap to host: %s", optarg);
+	die("Invalid address to remap to host: %s", arg);
 }
 
 /**