Make clenaup-containers bashate compliant

Change-Id: I5469e6e60b9e20ee98c9149697f663e94e58077d
Partially-Implements: blueprint bashate-gate

tools/cleanup-containers

@@ -12,28 +12,28 @@ cd "$(dirname "$REAL_PATH")/.."
 
 # Remove docker containers
 docker ps -a -q | while read -r line ; do
-  echo "Removing docker containers"
-  docker rm -f $line
+    echo "Removing docker containers"
+    docker rm -f $line
 done
 
 # Spawning the neutron-agents container leaves artifacts on the host.
 # This script removes these artifacts.
 ip netns list | while read -r line ; do
-  echo "Removing network namespaces on the host"
-  ip netns delete $line
+    echo "Removing network namespaces on the host"
+    ip netns delete $line
 done
 
 ifconfig | grep tap | awk '{print $1;}'| cut -f1 -d':' | while read -r line ; do
-  echo "Removing tap interfaces on the host"
-  ip link delete $line type veth
+    echo "Removing tap interfaces on the host"
+    ip link delete $line type veth
 done
 
 ifconfig | grep brq | awk '{print $1;}'| cut -f1 -d':' | while read -r line ; do
-  echo "Removing linux bridges on the host"
-  ip link delete $line type bridge
+    echo "Removing linux bridges on the host"
+    ip link delete $line type bridge
 done
 
 ifconfig | grep vxlan | awk '{print $1;}'| cut -f1 -d':' | while read -r line ; do
-  echo "Removing vxlan interfaces on the host"
-  ip link delete $line type vxlan
+    echo "Removing vxlan interfaces on the host"
+    ip link delete $line type vxlan
 done