fix typo in dockerfile

Resolves:
Related:
Signed-off-by: Daniel Andrei Minca <[email protected]>

Author: dminca

Dockerfile

@@ -40,6 +40,7 @@ RUN set -x \
 
 WORKDIR /opt
 RUN set -x \
+  tar xvf poop.tar.gz -C caca --strip-components 1 \
   curl -L https://github.com/phacility/phabricator/archive/${PHABRICATOR_COMMIT}.tar.gz | tar -xzf - \
   curl -L https://github.com/phacility/arcanist/archive/${ARCANIST_COMMIT}.tar.gz | tar -xzf - \
   curl -L https://github.com/phacility/libphutil/archive/${LIBPHUTIL_COMMIT}.tar.gz | tar -xzf - \