pkg/fileutils: format code with gofumpt

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

pkg/fileutils/fileutils.go

@@ -56,12 +56,12 @@ func CreateIfNotExists(path string, isDir bool) error {
 	if _, err := os.Stat(path); err != nil {
 		if os.IsNotExist(err) {
 			if isDir {
-				return os.MkdirAll(path, 0755)
+				return os.MkdirAll(path, 0o755)
 			}
-			if err := os.MkdirAll(filepath.Dir(path), 0755); err != nil {
+			if err := os.MkdirAll(filepath.Dir(path), 0o755); err != nil {
 				return err
 			}
-			f, err := os.OpenFile(path, os.O_CREATE, 0755)
+			f, err := os.OpenFile(path, os.O_CREATE, 0o755)
 			if err != nil {
 				return err
 			}