Just did this mine did not have Edit with Text either so just opened the file in the Text Editor itself and edited it.
Interesting... I don't know why mine had the option of open in text editor and others don't? But at least you got around it. I don't know of any other edits that help.
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Current: Galaxy Nexus
Past: Droid, Droid Incredible, Droid X, Droid Pro, Droid Bionic, Droid RAZR