fix typo in IssueComment and return more API error data

github/github.go

@@ -173,9 +173,9 @@ type ErrorResponse struct {
 }
 
 func (r *ErrorResponse) Error() string {
-	return fmt.Sprintf("%v %v: %d %v",
+	return fmt.Sprintf("%v %v: %d %v %+v",
 		r.Response.Request.Method, r.Response.Request.URL,
-		r.Response.StatusCode, r.Message)
+		r.Response.StatusCode, r.Message, r.Errors)
 }
 
 /*

github/issues.go

@@ -40,7 +40,7 @@ type Issue struct {
 // IssueComment represents a comment left on an issue.
 type IssueComment struct {
 	ID        int        `json:"id,omitempty"`
-	Body      string     `json:"body:omitempty"`
+	Body      string     `json:"body,omitempty"`
 	User      *User      `json:"user,omitempty"`
 	CreatedAt *time.Time `json:"created_at,omitempty"`
 	UpdatedAt *time.Time `json:"updated_at,omitempty"`