since finish did not return an error code
also make sure we don't call target_end from inside _dispose, since that
can't signal error either
see https://github.com/libvips/libvips/issues/2801
Use GLib's i18n support instead of copying and pasting that
logic into its own header. This deprecates the vips/intl.h
header in favour of glib/gi18n.h.
various cosmetic changes:
- pngsave_buffer now uses Write, not WriteBuf, same change for
radsave_buffer
- move C wrappers out to class defs from foreign.c
- use g_free() not vips_free() for buffer free from low-level savers
- fix var names in some comments
- various style changes for radiance.c
John Cupitt
Kleis Auke Wolthuizen
Alistair Thomas
Benjamin Gilbert