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col: avoid extra newline if no input 

BSD fix missed for 22 years, and all util-linux releases so far.

Backported-from: 2a15260a2a
Addresses: https://github.com/karelzak/util-linux/issues/422
Reported-by: Pavel Raiskup <praiskup@redhat.com>
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
This commit is contained in:
Sami Kerola 2017-05-09 19:10:49 +01:00 committed by Karel Zak
parent c6b0cbdd95
commit b6b5272b03
1 changed files with 2 additions and 0 deletions
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2
text-utils/col.c
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@ -391,6 +391,8 @@ int main(int argc, char **argv)
/* goto the last line that had a character on it */
for (; l->l_next; l = l->l_next)
this_line++;
if (max_line == 0)
return EXIT_SUCCESS; /* no lines, so just exit */
flush_lines(this_line - nflushd_lines + extra_lines + 1);
/* make sure we leave things in a sane state */