Log Message:
libexif-0.6.21 (2012-07-12):
  * New translations: en_AU, uk
  * Updated translations: cs, da, de, en_CA, nl, pl, sk, sv, vi
  * Added more supported lens in Canon MakerNote
  * Added some defensive NULL pointer checks
  * Fixed a number of security and stability issues due to buffer overflows,
    bad pointer dereferences and division-by-zero including bug 3434540
    and bug 3434545 (CVE-2012-2812, CVE-2012-2813, CVE-2012-2814,
    CVE-2012-2836, CVE-2012-2837, CVE-2012-2840, CVE-2012-2841,
    CVE-2012-2845)