Log Message:
sxiv: Update graphics/sxiv to 24.

pkgsrc changes:
- Add AUTORELOAD=nop to MAKE_FLAGS in order to avoid optional inotify
  support to automatically reload the current image whenever it changes
- Needs `c99' (`-std=c99' is passed to CFLAGS)

Changes:
24
--
 - Automatically reload the current image whenever it changes
 - Support embedding into other X windows with -e (e.g. tabbed)
 - New option -p prevents sxiv from creating cache and temporary files
 - Simpler mouse mappings, the most basic features are accessible with
   the mouse only (navigate, zoom, pan)