Update bare exceptions to specify Exception.

This will keep us from accidentally catching program-exiting exceptions
like KeyboardInterupt and SystemExit.

lib/ansible/modules/cloud/misc/rhevm.py

@@ -339,7 +339,7 @@ class RHEVConn(object):
             api = API(url=url, username=user, password=password, insecure=str(insecure_api))
             api.test()
             self.conn = api
-        except:
+        except Exception:
             raise Exception("Failed to connect to RHEV-M.")
 
     def __del__(self):