make generate: stringer was updated and now uses strconv instead of fmt

https://github.com/golang/tools/commit/bd4635fd25596cdd56c1fb399c53b351d1a81f2d#diff-0415b5286e4cf3e373f349d917e5e039

rpc/datatype_string.go

@@ -2,7 +2,7 @@
 
 package rpc
 
-import "fmt"
+import "strconv"
 
 const _DataType_name = "DataTypeNoneDataTypeControlDataTypeMarshaledJSONDataTypeOctets"
 
@@ -11,7 +11,7 @@ var _DataType_index = [...]uint8{0, 12, 27, 48, 62}
 func (i DataType) String() string {
 	i -= 1
 	if i >= DataType(len(_DataType_index)-1) {
-		return fmt.Sprintf("DataType(%d)", i+1)
+		return "DataType(" + strconv.FormatInt(int64(i+1), 10) + ")"
 	}
 	return _DataType_name[_DataType_index[i]:_DataType_index[i+1]]
 }

rpc/frametype_string.go

@@ -2,7 +2,7 @@
 
 package rpc
 
-import "fmt"
+import "strconv"
 
 const (
 	_FrameType_name_0 = "FrameTypeHeaderFrameTypeDataFrameTypeTrailer"
@@ -11,7 +11,6 @@ const (
 
 var (
 	_FrameType_index_0 = [...]uint8{0, 15, 28, 44}
-	_FrameType_index_1 = [...]uint8{0, 12}
 )
 
 func (i FrameType) String() string {
@@ -22,6 +21,6 @@ func (i FrameType) String() string {
 	case i == 255:
 		return _FrameType_name_1
 	default:
-		return fmt.Sprintf("FrameType(%d)", i)
+		return "FrameType(" + strconv.FormatInt(int64(i), 10) + ")"
 	}
 }

rpc/status_string.go

@@ -2,7 +2,7 @@
 
 package rpc
 
-import "fmt"
+import "strconv"
 
 const _Status_name = "StatusOKStatusRequestErrorStatusServerErrorStatusError"
 
@@ -11,7 +11,7 @@ var _Status_index = [...]uint8{0, 8, 26, 43, 54}
 func (i Status) String() string {
 	i -= 1
 	if i >= Status(len(_Status_index)-1) {
-		return fmt.Sprintf("Status(%d)", i+1)
+		return "Status(" + strconv.FormatInt(int64(i+1), 10) + ")"
 	}
 	return _Status_name[_Status_index[i]:_Status_index[i+1]]
 }