log-processor: include full exception traceback

This is currently failing in some cases (I'm sure it is when executor
only jobs end up with things that aren't matched, but can't pinpoint
exactly) but you only get

  "details": "IndexError('list index out of range',)",

which doesn't help find out which list index was out of range.

The get_execption() is for python 2.6 support (described [1]) so we
can use the regular format.  Then include the full traceback in the
details so we can see the line causing problems.

[1] https://docs.ansible.com/ansible/2.5/dev_guide/developing_python_3.html

Change-Id: I20d1d99a48b7a173ab6c792dc3508c27b8047f6a

roles/submit-log-processor-jobs/library/submit_log_processor_jobs.py

@@ -18,9 +18,10 @@
 import os
 import json
 import re
+import traceback
 
 from ansible.module_utils.six.moves import urllib
-from ansible.module_utils.basic import AnsibleModule, get_exception
+from ansible.module_utils.basic import AnsibleModule
 
 import gear
 
@@ -199,9 +200,9 @@ def main():
             results['jobs'].append(handle)
         module.exit_json(**results)
     except Exception:
-        e = get_exception()
+        tb = traceback.format_exc()
         module.fail_json(msg='Unknown error',
-                         details=repr(e),
+                         details=tb,
                          **results)