[Tracker] Clarification on translatable string

[Luca Ferretti <elle uca libero it>]

#: ../src/tracker-indexer/tracker-main.c:90
msgid "Whether to process data from all configured modules to be indexed"

I've a doubt, maybe silly, about this string. Is "to be indexed"
referred to modules??? This is impossible. So, what's the meaning of
this message.

Thanks in advance