fontforge/fontforge — pull request #1666 by adrientetar (2014-08-19 11:27:30+00:00)
Title: ufo: fix kerning pairs output

Output before this patch:

~~~~

space

-20
40

f

-10
80

~~~~

[Spec](http://unifiedfontobject.org/versions/ufo2/kerning.html):

~~~~

A

B
-10
X
-10
Z
-15

X

Q
-10

~~~~

cc #1634.

r? @frank-trampe