[Toybox] [PATCH] echo: fix trailing \0.

[enh]

This is a follow-on from 310eefe, addressing the case where sscanf fails
and returns -1.
---
 lib/lib.c       | 2 +-
 tests/echo.test | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 0001-echo-fix-trailing-0.patch
Type: text/x-patch
Size: 1219 bytes
Desc: not available
URL: <http://lists.landley.net/pipermail/toybox-landley.net/attachments/20200803/ce7b7f60/attachment-0002.bin>