The locale directory for Tamil (India) is
"/usr/share/locale/ta_IN/LC_MESSAGES/" but not
"/usr/share/locale/ta-IN/LC_MESSAGES/"
For the locale directory mapping purpose, need to change ta-IN to ta_IN:
$ git mv ta-IN.po ta_IN.po
Signed-off-by: WANG Chao <chaowang@redhat.com>
