Fix more typos in comments.

Heikki Linnakangas <heikki.linnakangas@iki.fi>

Commit: fa60fb63e511e7bbcf57ce972338711593a5e7c9
Author: Heikki Linnakangas <heikki.linnakangas@iki.fi>
Date: 2015-05-20T16:45:43Z
Releases: 9.5.0
Fix more typos in comments.

Patch by CharSyam, plus a few more I spotted with grep.

Files