whisper: more non-API-breaking changes

The remaining lint errors are because of auto-generated
files and one is because an exported function has a non-
exported return type. Changing this would break the API,
and will be part of another commit for easier reversal.

whisper/whisperv6/api.go

@@ -36,6 +36,7 @@ const (
 	filterTimeout = 300 // filters are considered timeout out after filterTimeout seconds
 )
 
+// List of errors
 var (
 	ErrSymAsym              = errors.New("specify either a symmetric or an asymmetric key")
 	ErrInvalidSymmetricKey  = errors.New("invalid symmetric key")

whisper/whisperv6/doc.go

@@ -37,6 +37,7 @@ import (
 	"time"
 )
 
+// Whisper protocol parameters
 const (
 	ProtocolVersion    = uint64(6) // Protocol version number
 	ProtocolVersionStr = "6.0"     // The same, as a string

whisper/whisperv6/filter.go

@@ -166,7 +166,8 @@ func (f *Filter) expectsSymmetricEncryption() bool {
 	return f.KeySym != nil
 }
 
-// Trigger
+// Trigger adds a yet-unknown message to the filter's list of
+// received messages.
 func (f *Filter) Trigger(msg *ReceivedMessage) {
 	f.mutex.Lock()
 	defer f.mutex.Unlock()