Sascha Brawer f38cc9f821 Write XML for alternate glyphs (GSUB lookup type 3) in deterministic order
Before this change, the XML output for GSUB lookups of type 3
was not deterministic; multiple runs of TTX on the same font
could therefore emit the alternates in a different order.

Since alternate glyphs are sets, this change makes no semantic
difference to the output. However, a deterministic ordering
is needed for tests that compare GSUB tables in TTX format.
2015-09-07 11:21:17 +02:00
..
3.0
2015-08-31 18:57:15 +01:00
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