minor dbutil tidy up
Merge pull request #1592 from rojblake/dbutil

This PR was merged into zikula:1.3 branch.

Discussion
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minor dbutil tidy up

This patch removes a couple of minor, incorrect references to dbutil within comments.

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | 
| Refs tickets  | | License       | MIT
| Doc PR        |

Commits
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f4ad948908ef712fab0e17ff59655595925dfd72 minor dbutil tidy up