pin command: rename Error field to Errors

The commands library interprets the result as an error if it has an Error field.
We're working on fixing this by ensuring that errors are either sent as trailers
or as the body of a non-200 response. However, we've kept the client-side of the
commands library backwards compatible for now.

🦆

License: MIT
Signed-off-by: Steven Allen <steven@stebalien.com>

core/commands/pin.go

@@ -39,8 +39,8 @@ var PinCmd = &cmds.Command{
 }
 
 type PinOutput struct {
-	Pins  []string
-	Error map[string]error `json:",omitempty"`
+	Pins   []string
+	Errors map[string]error `json:",omitempty"`
 }
 
 type AddPinOutput struct {
@@ -252,7 +252,7 @@ collected if needed. (By default, recursively. Use -r=false for direct pins.)
 	Encoders: cmds.EncoderMap{
 		cmds.Text: cmds.MakeTypedEncoder(func(req *cmds.Request, w io.Writer, out *PinOutput) error {
 			for _, k := range out.Pins {
-				if err, ok := out.Error[k]; !ok {
+				if err, ok := out.Errors[k]; !ok {
 					fmt.Fprintf(w, "unpinned %s\n", k)
 				} else {
 					fmt.Fprintf(os.Stderr, "cannot unpin %s: %s\n", k, err)