probablycorey/mini_magick — pull request #81 by robertjwhitney (2012-03-07 18:06:53+00:00)
Title: removes string from MOGRIFY_COMMANDS

-string is not a valid mogrify command

```bash
robertwhitney$ mogrify -string
mogrify: unrecognized option `-string' @ error/mogrify.c/MogrifyImageCommand/5785.
```