dsdeflate: shorten scope of initial buffer

[public-inbox.git] / scripts / xhdr-num2mid

diff --git a/scripts/xhdr-num2mid b/scripts/xhdr-num2mid
index 6f839c555eeadf85f156deadf8b1e8a72f9a36b4..3ca33f5d8fc072045a10b0ded774be1f3a7da7b3 100755 (executable)
--- a/scripts/xhdr-num2mid
+++ b/scripts/xhdr-num2mid
@@ -1,5 +1,5 @@
 #!/usr/bin/perl -w
-# Copyright (C) 2016-2018 all contributors <meta@public-inbox.org>
+# Copyright (C) 2016-2021 all contributors <meta@public-inbox.org>
 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
 # Useful for mapping article IDs from existing NNTP servers to MIDs
 use strict;
@@ -23,7 +23,7 @@ my ($num, $first, $last) = $nntp->group($group);
 die "Invalid group\n" if !(defined $num && defined $first && defined $last);
 my $arg_first = shift;
 if (defined $arg_first) {
-       $arg_first =~ /\A\d+\z/ or die $usage;
+       $arg_first =~ /\A[0-9]+\z/ or die $usage;
        $first = $arg_first;
 } elsif ($mm) {
        my $last_article = $mm->meta_accessor('last_article');