issue #477: one more conditional test.

tests/ansible/regression/issue_152__virtualenv_python_fails.yml

@@ -8,20 +8,20 @@
     # Can't use pip module because it can't create virtualenvs, must call it
     # directly.
     - shell: virtualenv /tmp/issue_152_virtualenv
-      when: lout.python_version != '2.6'
+      when: lout.python_version > '2.6'
 
     - custom_python_detect_environment:
       vars:
         ansible_python_interpreter: /tmp/issue_152_virtualenv/bin/python
       register: out
-      when: lout.python_version != '2.6'
+      when: lout.python_version > '2.6'
 
     - assert:
         that:
           - out.sys_executable == "/tmp/issue_152_virtualenv/bin/python"
-      when: lout.python_version != '2.6'
+      when: lout.python_version > '2.6'
 
     - file:
         path: /tmp/issue_152_virtualenv
         state: absent
-      when: lout.python_version != '2.6'
+      when: lout.python_version > '2.6'