all: ignore error permission when listing file markups

Instead of returning the error, ignore it and continue processing other
files in the list.

1 files changed, 3 insertions, 0 deletions

diff --git a/ciigo.go b/ciigo.go
index 2978390..d782a88 100644
--- a/ciigo.go
+++ b/ciigo.go
@@ -277,6 +277,9 @@ func listFileMarkups(dir string, excRE []*regexp.Regexp) (
 
 	d, err = os.Open(dir)
 	if err != nil {
+		if os.IsPermission(err) {
+			return nil, nil
+		}
 		return nil, fmt.Errorf(`%s: %w`, logp, err)
 	}