$string['skipmodifdays'] = 'Skip courses not modified since';
$string['skipmodifdayshelp'] = 'Choose to skip courses that have not been modified since a number of days';
$string['skipmodifprev'] = 'Skip courses not modified since previous backup';
-$string['skipmodifprevhelp'] = 'Choose whether or not to skip courses that have not been modified since previous backup';
+$string['skipmodifprevhelp'] = 'Choose whether to skip courses that have not been modified since the last automatic backup. This requires logging to be enabled.';
$string['title'] = 'Title';
$string['totalcategorysearchresults'] = 'Total categories: {$a}';
$string['totalcoursesearchresults'] = 'Total courses: {$a}';