MAMP 1.7.2
MODx version 0.9.6.2
Version codename rev 4077
Access permissions Enabled
Database name development
Database server localhost
Database Charset latin1
Database Collation Charset latin1_swedish_ci
Table prefix modx_
Line 118 is the same.
I don’t see why the DB charset would make any difference as Feedx is working on external data.
Viewing the rendered feed from the front-end with
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
in the site template shows the apostrophes correctly for me.