[libvirt] [libvirt-sandbox][PATCH] Docs: update network options configuration

[Alex Jia]

Signed-off-by: Alex Jia <ajia at redhat.com>
---
 bin/virt-sandbox-service-create.pod |    7 ++++++-
 bin/virt-sandbox.c                  |    7 ++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/bin/virt-sandbox-service-create.pod b/bin/virt-sandbox-service-create.pod
index 84cbf0a..1f82e1d 100644
--- a/bin/virt-sandbox-service-create.pod
+++ b/bin/virt-sandbox-service-create.pod
@@ -56,7 +56,12 @@ key=val pairs, separated by commas. The following options are valid
 =item dhcp
 
 Configure the network interface using dhcp. This key takes no value.
-No other keys may be specified.
+No other keys may be specified. eg
+
+  -N dhcp,source=default
+  --network dhcp,source=lan
+
+where 'source' is the name of any libvirt virtual network.
 
 =item source=NETWORK
 
diff --git a/bin/virt-sandbox.c b/bin/virt-sandbox.c
index 0396d9e..88c4333 100644
--- a/bin/virt-sandbox.c
+++ b/bin/virt-sandbox.c
@@ -335,7 +335,12 @@ key=val pairs, separated by commas. The following options are valid
 =item dhcp
 
 Configure the network interface using dhcp. This key takes no value.
-No other keys may be specified.
+No other keys may be specified. eg
+
+  -N dhcp,source=default
+  --network dhcp,source=lan
+
+where 'source' is the name of any libvirt virtual network.
 
 =item source=NETWORK
 
-- 
1.7.1