Run gosimple against codebase (#12928)

mlog/human/parser.go

@@ -41,7 +41,7 @@ func parseLogMessage(msg string) (result LogEntry, err error) {
 	} else {
 		d, ok := token.(json.Delim)
 		if !ok || d != '{' {
-			return result, errors.New(fmt.Sprintf("input is not a JSON object, found: %v", token))
+			return result, fmt.Errorf("input is not a JSON object, found: %v", token)
 		}
 	}
 
@@ -110,7 +110,7 @@ func parseLogMessage(msg string) (result LogEntry, err error) {
 	} else {
 		d, ok := token.(json.Delim)
 		if !ok || d != '}' {
-			return result, errors.New(fmt.Sprintf("failed to read '}', read: %v", token))
+			return result, fmt.Errorf("failed to read '}', read: %v", token)
 		}
 	}