Subject: bug#20628: 25.0.50; Incorrect line height for some fonts

From: Stefan Monnier <[email-masked]>
Date: Fri, 29 May 2015 10:49:40 -0400

>> Any special character you see look bad, please make sure with "C-u C-x ="
>> with which font it's displayed.
> OK, they are: 0x2228 and 0x03BB.

That's only the char.  C-u C-x = should give you a crapload more info,
including the actual font being used.

        Stefan