2004-02-18  Sven Neumann  <sven@gimp.org>

        * tile-cache.c
        * tile-private.h
        * tile.[ch]: removed trailing whitespace, added some newlines,
        let tile_is_valid() return a gboolean instead of a gint.

        * app/core/gimpimage-projection.c
        * app/core/gimpimage-undo-push.c
        * app/paint/gimppaintcore.c
        * app/tools/gimpinktool.c: use the return value from tile_is_valid()
        as a boolean.