logging: Implement net writer (#2884)

* Implement UDP writer

* Implement Net Writer

* Utilize Caddy's address parsing functions

* A couple little fixes (see #2884)

1 files changed, 4 insertions, 3 deletions

diff --git a/logging.go b/logging.go
index a4a1473..790f700 100644
--- a/logging.go
+++ b/logging.go
@@ -225,10 +225,11 @@ func (logging *Logging) openWriter(opener WriterOpener) (io.WriteCloser, bool, e
 		w, err := opener.OpenWriter()
 		return writerDestructor{w}, err
 	})
-	if err == nil {
-		logging.writerKeys = append(logging.writerKeys, key)
+	if err != nil {
+		return nil, false, err
 	}
-	return writer.(io.WriteCloser), !loaded, err
+	logging.writerKeys = append(logging.writerKeys, key)
+	return writer.(io.WriteCloser), !loaded, nil
 }
 
 // WriterOpener is a module that can open a log writer.