tree 5294d1083e0721300caf50808eb449f841ce8d0a
parent dafdb2933a9d4ef7ef5365c5e8ecfba39b4d3c57
author Behdad Esfahbod <behdad@behdad.org> 1387263506 -0500
committer Behdad Esfahbod <behdad@behdad.org> 1387263506 -0500

Handle NULL coverage table in ligature substitute

Just to be in line with Single and Alternate subst.