Request 87280 (accepted)

- annotate functions from gif_lib_private.h with visibility
hidden so they are not exported. (forwarded request 87211 from elvigia)

- annotate functions from gif_lib_private.h with visibility
hidden so they are not exported. (forwarded request 87211 from elvigia)

Please review sources

Reviewed by saschpe

Accepted submit request 87280 from user saschpe

{"approve": "license and version number unchanged: 4.1.6"}

Builds for repo openSUSE_Factory

Output of check script (non-fatal):
- package has baselibs.conf: (unchanged)

Reviewed by saschpe