Use another EXIF tag for the date if the default one is not available.
authorFrancois Fleuret <francois@fleuret.org>
Tue, 2 Jun 2015 07:35:47 +0000 (09:35 +0200)
committerFrancois Fleuret <francois@fleuret.org>
Tue, 2 Jun 2015 07:35:47 +0000 (09:35 +0200)

No differences found