[master] Changed dhcrelay v4 command line arg from -u to -Uv4_3_4b1

Changed the new uplink command line argument for v4 dhcrelay from
-u to -U to distinguish it from v6.

2 files changed, 8 insertions, 5 deletions

diff --git a/relay/dhcrelay.8 b/relay/dhcrelay.8
index 675ed01d..67065663 100644
--- a/relay/dhcrelay.8
+++ b/relay/dhcrelay.8
@@ -80,6 +80,9 @@ dhcrelay - Dynamic Host Configuration Protocol Relay Agent
 .B -l
 .I interface
 ]
+.B -U
+.I interface
+]
 .I server0
 [
 .I ...serverN
@@ -217,7 +220,7 @@ packet, leaving the supplied option field intact; it may \fIreplace\fR the
 existing agent option field; it may \fIforward\fR the packet unchanged; or,
 it may \fIdiscard\fR it.
 .TP
--u \fIifname\fR
+-U \fIifname\fR
 Enables the addition of a RFC 3527 compliant link selection suboption for
 clients directly connected to the relay.  This RFC allows a relay to
 specify two different IP addresses: one for the server to use when
@@ -242,7 +245,7 @@ This option is off by default.  Note that enabling this option automatically
 enables the \fB-a\fR option.
 
 Keep in mind that using options such as \fB-m replace\fR or \fB-m discard\fR
-on relays upstream from one using \fB-u\fR can pose problems.  The upstream
+on relays upstream from one using \fB-U\fR can pose problems.  The upstream
 relay will wipe out the initial agent option containing the link selection
 while leaving the re-purposed giaddr value in place, causing packets to go
 astray.
diff --git a/relay/dhcrelay.c b/relay/dhcrelay.c
index 4113789a..5ecd2656 100644
--- a/relay/dhcrelay.c
+++ b/relay/dhcrelay.c
@@ -153,7 +153,7 @@ char *progname;
 "                     [-pf <pid-file>] [--no-pid]\n"\
 "                     [-m append|replace|forward|discard]\n" \
 "                     [-i interface0 [ ... -i interfaceN]\n" \
-"                     [-u interface]\n" \
+"                     [-U interface]\n" \
 "                     server0 [ ... serverN]\n\n" \
 "       %s -6   [-d] [-q] [-I] [-c <hops>] [-p <port>]\n" \
 "                     [-pf <pid-file>] [--no-pid]\n" \
@@ -168,7 +168,7 @@ char *progname;
 "                [-pf <pid-file>] [--no-pid]\n" \
 "                [-m append|replace|forward|discard]\n" \
 "                [-i interface0 [ ... -i interfaceN]\n" \
-"                [-u interface]\n" \
+"                [-U interface]\n" \
 "                server0 [ ... serverN]\n\n"
 #endif
 
@@ -373,7 +373,7 @@ main(int argc, char **argv) {
 				agent_relay_mode = discard;
 			} else
 				usage("Unknown argument to -m: %s", argv[i]);
-		} else if (!strcmp(argv [i], "-u")) {
+		} else if (!strcmp(argv [i], "-U")) {
 			if (++i == argc)
 				usage(use_noarg, argv[i-1]);