Add a -v(erbose) flag to undo our -q(uiet) default.

contrib/isc-dhcp/client/dhclient.8

@@ -41,6 +41,9 @@ dhclient - Dynamic Host Configuration Protocol Client
 .B -q
 ]
 [
+.B -v
+]
+[
 .B -1
 ]
 [
@@ -204,6 +207,10 @@ facility.   The
 .B -q
 flag prevents any messages other than errors from being printed to the
 standard error descriptor.
+.B -v
+flag turns on all messages.
+Opposite of
+.B -q .
 .PP
 The client normally doesn't release the current lease as it is not
 required by the DHCP protocol.  Some cable ISPs require their clients

contrib/isc-dhcp/client/dhclient.c

@@ -185,6 +185,9 @@ int main (argc, argv, envp)
 		} else if (!strcmp (argv [i], "-q")) {
 			quiet = 1;
 			quiet_interface_discovery = 1;
+		} else if (!strcmp (argv [i], "-v")) {
+			quiet = 0;
+			quiet_interface_discovery = 0;
 		} else if (!strcmp (argv [i], "-s")) {
 			if (++i == argc)
 				usage ();