minor accuracy fix

Don't round the parameter 12.04 in the explanatory paragraph unless `version()` rounds the parameter

(cherry picked from commit 5cf544e03e)
(cherry picked from commit 56967497d5)

changelogs/fragments/doc_fix.yml

@@ -0,0 +1,2 @@
+bugfixes:
+  - minor doc fix https://github.com/ansible/ansible/pull/39111

docs/docsite/rst/user_guide/playbooks_tests.rst

@@ -74,7 +74,7 @@ The ``version`` test can also be used to evaluate the ``ansible_distribution_ver
 
     {{ ansible_distribution_version is version('12.04', '>=') }}
 
-If ``ansible_distribution_version`` is greater than or equal to 12, this test returns True, otherwise False.
+If ``ansible_distribution_version`` is greater than or equal to 12.04, this test returns True, otherwise False.
 
 The ``version`` test accepts the following operators::