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tail: fix bug in rewriting argv #1041

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Merged
briandfoy merged 1 commit into from
Jun 7, 2026
Merged

tail: fix bug in rewriting argv #1041

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4 changes: 3 additions & 1 deletion bin/tail
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Original file line number Diff line number Diff line change
Expand Up @@ -74,6 +74,7 @@ sub new_argv
{
my @new;
my $end = 0;
my $prev = '';

foreach my $arg (@ARGV) {
if ($arg eq '--' || $arg !~ m/\A[\-\+]/) {
Expand All @@ -82,11 +83,12 @@ sub new_argv
next;
}

if (!$end && $arg =~ m/\A([\-\+][0-9]+)\Z/) { # historic
if (!$end && $prev ne '-n' && $arg =~ m/\A([\-\+][0-9]+)\Z/) { # historic
push @new, "-n$1";
} else {
push @new, $arg;
}
$prev = $arg;
}
return @new;
}
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