raft: Improve formatting of DescribeMessage

raft/util.go

@@ -65,13 +65,19 @@ func DescribeMessage(m pb.Message, f EntryFormatter) string {
 	fmt.Fprintf(&buf, "%x->%x %v Term:%d Log:%d/%d", m.From, m.To, m.Type, m.Term, m.LogTerm, m.Index)
 	if m.Reject {
 		fmt.Fprintf(&buf, " Rejected")
+		if m.RejectHint != 0 {
+			fmt.Fprintf(&buf, "(Hint:%d)", m.RejectHint)
+		}
 	}
 	if m.Commit != 0 {
 		fmt.Fprintf(&buf, " Commit:%d", m.Commit)
 	}
 	if len(m.Entries) > 0 {
 		fmt.Fprintf(&buf, " Entries:[")
-		for _, e := range m.Entries {
+		for i, e := range m.Entries {
+			if i != 0 {
+				buf.WriteString(", ")
+			}
 			buf.WriteString(DescribeEntry(e, f))
 		}
 		fmt.Fprintf(&buf, "]")