treewide: shorten temporary filename

File::Temp only requires four 'X' characters (unlike mkstemp(3),
which requires six).  So only so only give it 4 to avoid an
80-column violation and maybe save metadata space on FSes.

1 files changed, 3 insertions, 3 deletions

diff --git a/lib/PublicInbox/V2Writable.pm b/lib/PublicInbox/V2Writable.pm
index 4130a472..0461257f 100644
--- a/lib/PublicInbox/V2Writable.pm
+++ b/lib/PublicInbox/V2Writable.pm
@@ -660,7 +660,7 @@ sub done {
 
 sub write_alternates ($$$) {
         my ($info_dir, $mode, $out) = @_;
-        my $fh = File::Temp->new(TEMPLATE => 'alt-XXXXXXXX', DIR => $info_dir);
+        my $fh = File::Temp->new(TEMPLATE => 'alt-XXXX', DIR => $info_dir);
         my $tmp = $fh->filename;
         print $fh @$out or die "print $tmp: $!\n";
         chmod($mode, $fh) or die "fchmod $tmp: $!\n";
@@ -772,11 +772,11 @@ sub import_init {
 sub diff ($$$) {
         my ($mid, $cur, $new) = @_;
 
-        my $ah = File::Temp->new(TEMPLATE => 'email-cur-XXXXXXXX', TMPDIR => 1);
+        my $ah = File::Temp->new(TEMPLATE => 'email-cur-XXXX', TMPDIR => 1);
         print $ah $cur->as_string or die "print: $!";
         $ah->flush or die "flush: $!";
         PublicInbox::Import::drop_unwanted_headers($new);
-        my $bh = File::Temp->new(TEMPLATE => 'email-new-XXXXXXXX', TMPDIR => 1);
+        my $bh = File::Temp->new(TEMPLATE => 'email-new-XXXX', TMPDIR => 1);
         print $bh $new->as_string or die "print: $!";
         $bh->flush or die "flush: $!";
         my $cmd = [ qw(diff -u), $ah->filename, $bh->filename ];