@@ -1446,7 +1446,7 @@ self-contained: false
1446# note that structured variables may be specified:
1446# note that structured variables may be specified:
1447variables:
1447variables:
1448 documentclass: book
1448 documentclass: book
1449− classoptions:
1449+ classoption:
1450 - twosides
1450 - twosides