add coreutils for gnu date command so that timer script will work.

ericp1337 · ericp1337 · commit 1c3f44c048e8 · 2016-10-07T13:38:35.000-05:00
diff --git a/Dockerfile b/Dockerfile
@@ -44,6 +44,7 @@ RUN /usr/local/bin/apk-upgrade \
     automake \
     libtool \
     unzip \
+    coreutils \
     
     # Provision
     && /opt/docker/bin/provision add --tag bootstrap --tag entrypoint burp-server \
