mksquashfs: tidy up signal handling and document the signal usage

Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
1 file changed
tree: 4d017a0b3dc3a07f977b71e2d9556c17ebb4bf80
  1. kernel/
  2. kernel-2.4/
  3. squashfs-tools/
  4. README