[Toybox] [PATCH] tar: fix warn_unused_result error.

[enh]

  toys/posix/tar.c:821:7: error: ignoring return value of
  function declared with 'warn_unused_result' attribute
      write(sefd, 0, 0);
      ^~~~~ ~~~~~~~~~~
---
 toys/posix/tar.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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