I am using TL 1.9.0 in Ubuntu 10.04, apache2, and PostgresdB environment. Everything is working fine, however I see the following in my event log and unable to figure where/what needs to be set to get rid of this warnings. I am only listing a sample below, there are 100s of these, referring to different strings.
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string 'show_eventdetails' is not localized for locale 'en_US'