chg: [host] update docker-compose version

precise/host/hooks/install.d/70-0k.sh

@@ -130,7 +130,7 @@ if type -p docker-compose >/dev/null; then
         docker-compose --version
         exit 1
     fi
-    VALID_VERSION_TEXT="docker-compose version 1.6.0dev, build unknown"
+    VALID_VERSION_TEXT="docker-compose version 1.21.2, build a133471"
     if [ "$(docker-compose --version)" != "$VALID_VERSION_TEXT" ]; then
         echo "Invalid version of docker-compose: we need exactly:"
         echo "version text: $VALID_VERSION_TEXT"
@@ -144,7 +144,7 @@ else
             cd /opt/apps
             git clone https://github.com/docker/compose.git docker-compose &&
                 cd docker-compose &&
-                git checkout ea8cc1c3dc47c9ed3bff56c5a8d99175b57af650 ## version pinning
+                git checkout 0898c783ad2e0d01bd55b47fcb9eb7183edc1015 ## version pinning
         )
     fi