Fix FOR loop syntax and typo in code documentation

Change-Id: I5628f2de61924286cde2664a64ff54e0414eb0e4
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/network/test_host_network_interfaces.robot b/network/test_host_network_interfaces.robot
index 715cd2a..bf4a126 100644
--- a/network/test_host_network_interfaces.robot
+++ b/network/test_host_network_interfaces.robot
@@ -24,8 +24,9 @@
     Printn
     REST Power On
     @{interface_names}=  Get OS Network Interface Names
-    :FOR  ${interface_name}  IN  @{interface_names}
-    \  ${ethtool_dict}=  Get OS Ethtool  ${interface_name}
-    \  Run Keyword If  ${FAIL_ON__LINK_DOWN} == 1
-    \  ...  Should Be Equal  ${ethtool_dict['link_detected']}  yes
-    \  ...  msg=Link ${interface_name} is down.
+    FOR  ${interface_name}  IN  @{interface_names}
+       ${ethtool_dict}=  Get OS Ethtool  ${interface_name}
+       Run Keyword If  ${FAIL_ON__LINK_DOWN} == 1
+       ...  Should Be Equal  ${ethtool_dict['link_detected']}  yes
+       ...  msg=Link ${interface_name} is down.
+    END