Add title and description for FencedInstanceID (#1370)

Author: jessekempf

error.go

@@ -329,6 +329,8 @@ func (e Error) Title() string {
 		return "Unsupported Compression Type"
 	case MemberIDRequired:
 		return "Member ID Required"
+	case FencedInstanceID:
+		return "Fenced Instance ID"
 	case EligibleLeadersNotAvailable:
 		return "Eligible Leader Not Available"
 	case ElectionNotNeeded:
@@ -538,6 +540,8 @@ func (e Error) Description() string {
 		return "the requesting client does not support the compression type of given partition"
 	case MemberIDRequired:
 		return "the group member needs to have a valid member id before actually entering a consumer group"
+	case FencedInstanceID:
+		return "the broker rejected this static consumer since another consumer with the same group.instance.id has registered with a different member.id"
 	case EligibleLeadersNotAvailable:
 		return "eligible topic partition leaders are not available"
 	case ElectionNotNeeded: