[check-googlefonts] fix misleading error message.
@@ -1594,7 +1594,7 @@ def check_OS2_usWinAscent_and_Descent(ttFont, vmetrics):
yield FAIL, Message("descent",
("OS/2.usWinDescent value"
" should be {}, but got"
- " {} instead").format(vmetrics['ymin'],
+ " {} instead").format(abs(vmetrics['ymin']),
ttFont['OS/2'].usWinDescent))
if not failed:
yield PASS, "OS/2 usWinAscent & usWinDescent values look good!"
