Revert "fix(repo): correct typo and explicit null-check #258"

Author: noelmcloughlin

docker/software/package/repo/install.sls

@@ -12,7 +12,8 @@
   pkgrepo.managed:
     {{- format_kwargs(d.pkg.docker.repo) }}
     - humanname: {{ grains["os"] }} {{ grains["oscodename"]|capitalize }} Docker Package Repository
-    - refresh: {{ d.misc.refresh }}
-    - onlyif: {{ d.pkg.docker.repo != null }}
+    - refesh: {{ d.misc.refresh }}
+    - onlyif:
+      - {{ d.pkg.docker.repo }}
 
     {%- endif %}