There are a few problems with the full names of months in the ga_IE locale,
listed here:
* "May" is "Mí na Bealtaine", should be "Bealtaine"
* "June" is "Meith", should be "Meitheamh"
* "November" is "Mí na Samhna", should be "Samhain"
* "December" is "Mí na Nollag", should be "Nollaig"

Confirmation of these values can be found at
http://unicode.org/cldr/data/common/main/ga.xml (Searching the page for
"Feabhra" should bring one right to the values in question.) Additionally, I
emailed the contact for the locale who forwarded my message to the Irish contact
for CLDR who agreed with my suggestions. I can provide confirmation or a patch
if necessary.