Good day!

There are two rules for Mauritius in current version of timezone/africa:

Rule Mauritius  2008    max     -       Oct     lastSun 2:00s   1:00    S
Rule Mauritius  2009    max     -       Mar     lastSun 2:00s   0       -


It's wrong, because Mauritius used DST only in 2008/2009, prooflinks:

http://www.timeanddate.com/news/time/mauritius-daylight-saving-time.html

http://www.timeanddate.com/news/time/mauritius-dst-will-not-repeat.html

So, rules should be:

Rule Mauritius  2008    only     -       Oct     lastSun 2:00s   1:00    S

Rule Mauritius  2009    only     -       Mar     lastSun 2:00s   0       -

or something like that.