Use the .yaml file extension for all YAML files

playbooks/roles/add_apt_repository/meta/argument_specs.yaml

@@ -0,0 +1,25 @@
+---
+argument_specs:
+  main:
+    short_description: Add a 3rd party apt repository to the system
+    options:
+      add_apt_repository__https_repo:
+        description: The repository URL uses HTTPS
+        required: true
+        type: bool
+      add_apt_repository__keyring_url:
+        description: URL to the repository's keyring
+        required: false
+        type: str
+      add_apt_repository__keyring_path:
+        description: Path where to store the keyring
+        required: false
+        type: str
+      add_apt_repository__repo:
+        description: The apt source line
+        required: true
+        type: str
+      add_apt_repository__filename:
+        description: Filename in /etc/apt/sources.list.d/
+        required: true
+        type: str