openldap -> OpenLDAP Openldap -> OpenLDAP OpenLdap -> OpenLDAP I haven't checked if these mistakes are often used or not, though. Just popped in my mind while working on OpenLDAP debconf templates..(which have no error of course).
Also, what about checking debconf templates? I think that the probability of false positives there is quite low as long as you take care to check "Description" only ("_Description", indeed). The check could either be done on the source debconf templates (listed in debian/po/POTFILES.in) or on the DEBIAN/templates file in binary packages. The latter adds the possibility for checking proper capitalization in translated templates (I see no real reason for translations to change capitalization when mentioning project names that should remain untranslatable).
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