fix Dockerfile to use "ubuntu:13.10", not "13:10"

unclejack · unclejack · commit 867b5435f0a7 · 2014-04-09T19:54:09.000+03:00
diff --git a/Dockerfile b/Dockerfile
@@ -5,7 +5,7 @@
 # TO_BUILD:       docker build -rm -t registry .
 # TO_RUN:         docker run -p 5000:5000 registry
 
-FROM ubuntu:13:10
+FROM ubuntu:13.10
 
 RUN apt-get update; \
     apt-get install -y git-core build-essential python-dev \
