Plugins work now oughghgghughgghg

error.go

@@ -8,6 +8,7 @@ type Error string; const (
 	ErrTypeMismatch         Error = "type mismatch"
 	ErrPluginBadSymbol      Error = "plugin has an incorrect symbol"
 	ErrPluginNotOwnedByRoot Error = "plugin is not owned by the root user"
+	ErrPathNotAbsolute      Error = "path is not absolute"
 	ErrInsufficientSystem   Error = "the system cannot perform this action"
 )
 
@@ -15,3 +16,8 @@ type Error string; const (
 func (err Error) Error () string {
 	return string(err)
 }
+
+// Errors is any error that unwraps to a list of sub-errors.
+type Errors interface {
+	Unwrap () []error
+}