[PATCH] Remove -u support from wpa_supplicant README

[Roy Marples]

wpa_supplicant has not supported -u for a long long time ....
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commit 02f40ef9d093b099e75b63e8d1450165c97029d9
Author: Roy Marples <roy at marples.name>
Date:   Wed Jan 20 17:26:32 2016 +0000

    wpa_suppicant dropped the -w option long long time ago ...

diff --git a/wpa_supplicant/README b/wpa_supplicant/README
index 61be543..3223312 100644
--- a/wpa_supplicant/README
+++ b/wpa_supplicant/README
@@ -409,7 +409,7 @@ Command line options
 --------------------
 
 usage:
-  wpa_supplicant [-BddfhKLqqtuvwW] [-P<pid file>] [-g<global ctrl>] \
+  wpa_supplicant [-BddfhKLqqtuvW] [-P<pid file>] [-g<global ctrl>] \
         [-G<group>] \
         -i<ifname> -c<config file> [-C<ctrl>] [-D<driver>] [-p<driver_param>] \
         [-b<br_ifname> [-N -i<ifname> -c<conf> [-C<ctrl>] [-D<driver>] \
@@ -435,7 +435,6 @@ options:
   -q = decrease debugging verbosity (-qq even less)
   -u = enable DBus control interface
   -v = show version
-  -w = wait for interface to be added, if needed
   -W = wait for a control interface monitor before starting
   -N = start describing new interface
   -m = Configuration file for the P2P Device