libtest-tabs-perl - 0.005-1.1 main

Test::Tabs scans your project/distribution for any perl files (scripts,
modules, etc) for the presence of tabs.
.
In particular, it checks that all indentation is done using tabs, not
spaces; alignment is done via spaces, not tabs; indentation levels
never jump up (e.g. going from 1 tab indent to 3 tab indent without an
intervening 2 tab indent); and there is no trailing whitespace on any
line (though lines may consist entirely of whitespace).