Not sure if it protects against many spambots. Can't hurt, anyways.

[OT: wow, feh is back after all these years! way to go!]

i am proposing to obscure all these emails, because today, putting emails in plain text is just inviting spam.

i would do the same for the rest, but i did not want to over-reach. if you agree, i will happily do it.

gib_imlib_save_image_with_error_return was used, but it tries to set the Imlib
image format by examining the filename to save to.  However, it only supports
lowercase file endings (as in .jpg) and breaks with others (like .JPG).

Since giblib is unmaintained, for now the fix is only used here.