usp10: Fix memory leak when a font has 0 languages, scripts or features

[Aric Stewart]

Based on original fix proposded by Wojciech Pyczak
Fix for bug 32798
---
 dlls/usp10/opentype.c       | 22 ++++++++++++++++++----
 dlls/usp10/usp10_internal.h |  3 +++
 2 files changed, 21 insertions(+), 4 deletions(-)


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