Fix a deprecation warning with newer Perl that breaks some tests.

--- a/tp/Texinfo/Parser.pm
+++ b/tp/Texinfo/Parser.pm
@@ -5438,12 +5438,12 @@
     }
   } elsif ($command eq 'clickstyle') {
     # REMACRO
-    if ($line =~ /^\s+@([[:alnum:]][[:alnum:]\-]*)({})?\s*/) {
+    if ($line =~ /^\s+@([[:alnum:]][[:alnum:]\-]*)(\{})?\s*/) {
       $args = ['@'.$1];
       $self->{'clickstyle'} = $1
         unless(_ignore_global_commands($self));
       $remaining = $line;
-      $remaining =~ s/^\s+@([[:alnum:]][[:alnum:]\-]*)({})?\s*(\@(c|comment)((\@|\s+).*)?)?//;
+      $remaining =~ s/^\s+@([[:alnum:]][[:alnum:]\-]*)(\{})?\s*(\@(c|comment)((\@|\s+).*)?)?//;
       $has_comment = 1 if (defined($4));
     } else {
       $self->line_error (sprintf($self->__(
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<tr><td><span title='2022-02-02 16:46:44 +0100'>2022-02-02</span></td><td><a href='/guix/commit/gnu/installer/newt/partition.scm?id=726d0bd2f36363392ba2fcefd6e5d4aeed27dc9e'>installer: Use named prompt to abort or break installer steps.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/installer/steps.scm (run-installer-steps): Set up
'installer-step prompt.
* gnu/installer/newt/ethernet.scm (run-ethernet-page)
* gnu/installer/newt/final.scm (run-config-display-page,
run-install-failed-page)
* gnu/installer/newt/keymap.scm (run-layout-page, run-variant-page)
* gnu/installer/newt/locale.scm (run-language-page,
run-territory-page, run-codeset-page, run-modifier-page,
run-locale-page)
* gnu/installer/newt/network.scm (run-technology-page,
wait-service-online)
* gnu/installer/newt/page.scm (run-listbox-selection-page,
run-checkbox-tree-page)
* gnu/installer/newt/partition.scm (button-exit-action)
* gnu/installer/newt/services.scm (run-desktop-environments-cbt-page,
run-networking-cbt-page, run-other-services-cbt-page,
run-network-management-page)
* gnu/installer/newt/timezone.scm (run-timezone-page)
* gnu/installer/newt/user.scm (run-user-page)
* gnu/installer/newt/welcome.scm (run-menu-page)
* gnu/installer/newt/wifi.scm (run-wifi-page): Use the 'installer-step
prompt to abort.

Signed-off-by: Mathieu Othacehe &lt;othacehe@gnu.org&gt;
</span></span></td><td>Josselin Poiret</td></tr>
<tr><td><span title='2022-02-02 16:46:43 +0100'>2022-02-02</span></td><td><a href='/guix/commit/gnu/installer/newt/partition.scm?id=4f2fd33b4f27f590ec2337daef339cf3e2337dab'>installer: Use new installer-log-line everywhere.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/installer.scm (installer-program)
* gnu/installer/final.scm (install-locale)
* gnu/installer/newt.scm (init)
* gnu/installer/newt/final.scm (run-final-page)
* gnu/installer/newt/page.scm (run-form-with-clients)
* gnu/installer/newt/partition.scm (run-partitioning-page)
* gnu/installer/parted.scm (eligible-devices, mkpart,
luks-format-and-open, luks-close, mount-user-partitions,
umount-user-partitions, free-parted):
* gnu/installer/steps.scm (run-installer-steps):
* gnu/installer/utils.scm (run-command, send-to-clients): Use it.

Signed-off-by: Mathieu Othacehe &lt;othacehe@gnu.org&gt;
</span></span></td><td>Josselin Poiret</td></tr>
<tr><td><span title='2022-01-14 14:29:08 +0100'>2022-01-14</span></td><td><a href='/guix/commit/gnu/installer/newt/partition.scm?id=c6910baf361a4e7c1fbc2354875c4250452e2251'>installer: Ignore small devices.</a><span class='msg-avail'>...<span class='msg-tooltip'>Filter the devices that are smaller than 2GiB in the device selection list.

* gnu/installer/parted.scm (%min-device-size): New variable.
(non-install-devices): Rename it ...
(eligible-devices): ... this way. Filter the install device as well as the
small devices.
* gnu/installer/newt/partition.scm (run-partitioning-page): Adapt it.
</span></span></td><td>Mathieu Othacehe</td></tr>