replaced ip=auto with ip=dhcp in the documentation

https://bugzilla.redhat.com/show_bug.cgi?id=1086931

diff --git a/dracut.usage.asc b/dracut.usage.asc
index 6128ec4f28056677beb1c9dc3f18acc68e08e160..9e788c1dad47d75c607def79cc91ba09030002a0 100644 (file)
--- a/dracut.usage.asc
+++ b/dracut.usage.asc
@@ -209,7 +209,7 @@ be specified once.
 ----
 # mkdir -p rd.live.overlay/etc/cmdline.d
 # mkdir -p rd.live.overlay/etc/conf.d
-# echo "ip=auto" >> rd.live.overlay/etc/cmdline.d/mycmdline.conf
+# echo "ip=dhcp" >> rd.live.overlay/etc/cmdline.d/mycmdline.conf
 # echo export FOO=testtest >> rd.live.overlay/etc/conf.d/testvar.conf
 # echo export BAR=testtest >> rd.live.overlay/etc/conf.d/testvar.conf
 # tree rd.live.overlay/
@@ -263,7 +263,7 @@ Hat Enterprise Linux 6 Storage Administration Guide]
 or http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Storage_Administration_Guide/[Red
 Hat Enterprise Linux 7 Storage Administration Guide].
 
-If you specify ip=auto on the kernel command line, then dracut asks a dhcp
+If you specify ip=dhcp on the kernel command line, then dracut asks a dhcp
 server about the ip adress for the machine. The dhcp server can also serve an
 additional root-path, which will set the root device for dracut. With this
 mechanism, you have static configuration on your client machine and a