[JIRA] Optimize error msg (#804)

* [JIRA] Optimize error msg

* [JIRA] Reformat via black

Author: jnhyperion

atlassian/jira.py

@@ -3844,7 +3844,7 @@ def raise_for_status(self, response):
         if 400 <= response.status_code < 600:
             try:
                 j = response.json()
-                error_msg = "\n".join(j["errorMessages"])
+                error_msg = "\n".join(j["errorMessages"] + [k + ": " + v for k, v in j["errors"].items()])
             except Exception:
                 response.raise_for_status()