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Silence Perl warning

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Now that warnings are enabled across the board, this code that tries to
print an undef variable emits one.  Silently printing the empty string
achieves the previous behavior.

Author: Álvaro Herrera <alvherre@alvh.no-ip.org>
Reviewed-by: Andrew Dunstan <andrew.dunstan@2ndquadrant.com>
Discussion: https://postgr.es/m/E1jO1VT-0008Qk-TM@gemulon.postgresql.org
This commit is contained in:
Alvaro Herrera 2020-04-13 19:54:09 -04:00
parent bc3087b626
commit e56d717d8a
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GPG Key ID: 1C20ACB9D5C564AE
1 changed files with 3 additions and 1 deletions
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4
doc/src/sgml/mk_feature_tables.pl
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@ -54,7 +54,9 @@ while (<$feat>)
{
print " <entry>$feature_id</entry>\n";
}
print " <entry>" . $feature_packages{$feature_id} . "</entry>\n";
print " <entry>",
defined($feature_packages{$feature_id}) ? $feature_packages{$feature_id} : "",
"</entry>\n";
if ($subfeature_id)
{
print " <entry>$subfeature_name</entry>\n";