Checkmk Werk 7970: Fix possible AttributeError "function" has no attribute "get" exception during checking

ID: 7970 Title: Fix possible AttributeError "function" has no attribute "get" exception during checking Component: Core & setup Level: 1 Class: Bug fix Version: 1.7.0i1 In the moment a check timeout occured while checking a host when using the Microcore an exception like this could occur in all previous 1.6 releases: C+: An exception occured while processing host "beta" Traceback (most recent call last): File "/omd/sites/beta/lib/python/cmk_base/cee/keepalive.py", line 331, in do_keepalive exit_code = host_config.exit_code_spec.get("timeout", 2) AttributeError: 'function' object has no attribute 'get' C-: