Merge pull request #1643 from voxpupuli/cleanup_fixtures

chore: cleanup .fixtures.yml

Author: ekohl

.fixtures.yml

@@ -1,6 +1,7 @@
+---
 fixtures:
   repositories:
-    apt: "https://github.com/puppetlabs/puppetlabs-apt.git"
-    concat: "https://github.com/puppetlabs/puppetlabs-concat.git"
-    stdlib: "https://github.com/puppetlabs/puppetlabs-stdlib.git"
+    apt: https://github.com/puppetlabs/puppetlabs-apt.git
+    concat: https://github.com/puppetlabs/puppetlabs-concat.git
+    stdlib: https://github.com/puppetlabs/puppetlabs-stdlib.git
     yumrepo_core: https://github.com/puppetlabs/puppetlabs-yumrepo_core.git