Merge pull request #4128 from mbauskar/log-error

[hotfix] encode traceback for frappe.log_error method

frappe/__init__.py

@@ -1330,7 +1330,7 @@ def logger(module=None, with_more_info=True):
 
 def log_error(message=None, title=None):
 	'''Log error to Error Log'''
-	get_doc(dict(doctype='Error Log', error=str(message or get_traceback()),
+	get_doc(dict(doctype='Error Log', error=as_unicode(message or get_traceback()),
 		method=title)).insert(ignore_permissions=True)
 
 def get_desk_link(doctype, name):