[Toybox] [PATCH] Fix more to not append an extra newline.

[enh]

More's sigatexit handler needs to distinguish between normal exit and exit
due to receipt of a signal.

Change tty_sigreset to look at the signal number too, so that pressing 'q'
to exit top doesn't cause its exit status to be 128.
---
 lib/interestingtimes.c | 2 +-
 lib/xwrap.c            | 4 +++-
 toys/pending/more.c    | 5 +++++
 3 files changed, 9 insertions(+), 2 deletions(-)
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