Florian Müllner 9f00be50d6 shellDBus: Fix Eval() return value when disabled
Eval() is expected to return a boolean success value and a string result.
However when the function is disabled (via the development-tools setting),
we return null for the latter which is not a valid string value.
Return an empty string instead.

https://bugzilla.gnome.org/show_bug.cgi?id=698959
2013-04-26 18:16:12 +02:00
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