Remove newlines between braces (#4279)

These are found with: `pcregrep -M "}\n\n}" **/*.go`
Sometimes a unneeded newline is inserted, remove those.

Signed-off-by: Miek Gieben <miek@miek.nl>

plugin/auto/watcher_test.go

@@ -51,7 +51,6 @@ func TestWatcher(t *testing.T) {
 	if _, ok := a.Zones.Z["example.org."]; !ok {
 		t.Errorf("Expected %q to still be there.", "example.org.")
 	}
-
 }
 
 func TestSymlinks(t *testing.T) {