Fix misc typos in comments.

Heikki Linnakangas <heikki.linnakangas@iki.fi>

Commit: 57b7e83b0d5e192c01e261b76ff0ed0ccd73c37c
Author: Heikki Linnakangas <heikki.linnakangas@iki.fi>
Date: 2014-05-23T12:16:21Z
Releases: 9.4.0
Fix misc typos in comments.

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