Fixes test refs #1931

Author: JJ

shippable.yml

@@ -9,10 +9,9 @@ cache:
 build:
   pre_ci:
     - docker pull jjmerelo/perl6-doccer
-    - ls $SHIPPABLE_BUILD_DIR
 
   ci:
-    -  docker run -t -v SHIPPABLE_BUILD_DIR:/test --entrypoint="/bin/sh" jjmerelo/perl6-doccer -c ls
+    - docker run -t -v $SHIPPABLE_BUILD_DIR:/test --entrypoint="/bin/sh" jjmerelo/perl6-doccer -c ls
     - docker run -t -v $SHIPPABLE_BUILD_DIR:/test jjmerelo/perl6-doccer