make it clear _cuda_version_tuple is a private var

Author: sjpb

ansible/roles/cuda/defaults/main.yml

@@ -3,8 +3,8 @@ cuda_repo: "https://developer.download.nvidia.com/compute/cuda/repos/{{ cuda_dis
 cuda_packages:
   - cuda
   - nvidia-gds
-# cuda_version_tuple: # discovered from installed package e.g. ('12', '1', '0')
-cuda_version_short: "{{ cuda_version_tuple[0] }}.{{ cuda_version_tuple[1] }}"
+# _cuda_version_tuple: # discovered from installed package e.g. ('12', '1', '0')
+cuda_version_short: "{{ _cuda_version_tuple[0] }}.{{ cuda_version_tuple[1] }}"
 cuda_samples_release_url: "https://github.com/NVIDIA/cuda-samples/archive/refs/tags/v{{ cuda_version_short }}.tar.gz"
 cuda_samples_path: "/home/{{ ansible_user }}/cuda_samples"
 cuda_samples_programs:

ansible/roles/cuda/tasks/samples.yml

@@ -5,7 +5,7 @@
 
 - name: Set fact for discovered cuda version
   set_fact:
-    cuda_version_tuple: "{{ (_cuda_samples_version.content | b64decode | from_json).cuda.version | split('.') }}" # e.g. '12.1.0'
+    _cuda_version_tuple: "{{ (_cuda_samples_version.content | b64decode | from_json).cuda.version | split('.') }}" # e.g. '12.1.0'
 
 - name: Ensure cuda_samples_path exists
   file: