C include file completion restarts on hyphen
When trying to include a header in a C file, if I start typing #include "ephy-"
then the autocompletion considers the word stops at the hyphen, and hence when I continue by typing a bit more of the header name it won't sort very usefully the completion results as it'll only filter by the last few characters I started typing after ephy-, where I could have had just like 2-3 results if it took ephy- into account too. Anyway, there's no reason to make hyphens restart autocompletion from there, at least for headers (though honestly I don't see a reason for doing it with hyphens at all), so it would be nice if it didn't do it and hence be useful for header autocompletion.