Merge "Add extension to file"

tools/cleanup-images

@@ -4,7 +4,7 @@
 REAL_PATH=$(python -c "import os,sys;print os.path.realpath('$0')")
 cd "$(dirname "$REAL_PATH")/.."
 
-. tools/validate-docker-execute
+. tools/validate-docker-execute.sh
 
 KOLLA_IMAGES=$(docker images -a --filter "label=kolla_version" --format "{{.ID}}")