intltool-update is broken

[Glavo]

Bug description

When running intltool-update, it prints:

glavo@aosc-vmware ~/B/J/n/libdbusmenu (main)> intltool-update
Unescaped left brace in regex is passed through in regex; marked by <-- HERE in m/^(.*)\${ <-- HERE ?([A-Z_]+)}?(.*)$/ at /usr/bin/intltool-update line 1065.
Unescaped left brace in regex is passed through in regex; marked by <-- HERE in m/\${ <-- HERE ?AC_PACKAGE_NAME}?/ at /usr/bin/intltool-update line 1193.
Unescaped left brace in regex is passed through in regex; marked by <-- HERE in m/\${ <-- HERE ?PACKAGE}?/ at /usr/bin/intltool-update line 1194.
Unescaped left brace in regex is passed through in regex; marked by <-- HERE in m/\${ <-- HERE ?AC_PACKAGE_VERSION}?/ at /usr/bin/intltool-update line 1195.
Unescaped left brace in regex is passed through in regex; marked by <-- HERE in m/\${ <-- HERE ?VERSION}?/ at /usr/bin/intltool-update line 1196.
Unescaped left brace in regex is passed through in regex; marked by <-- HERE in m/\${ <-- HERE ?AC_PACKAGE_NAME}?/ at /usr/bin/intltool-update line 1222.
Unescaped left brace in regex is passed through in regex; marked by <-- HERE in m/\${ <-- HERE ?PACKAGE}?/ at /usr/bin/intltool-update line 1223.
Unescaped left brace in regex is passed through in regex; marked by <-- HERE in m/\${ <-- HERE ?AC_PACKAGE_VERSION}?/ at /usr/bin/intltool-update line 1224.
Unescaped left brace in regex is passed through in regex; marked by <-- HERE in m/\${ <-- HERE ?VERSION}?/ at /usr/bin/intltool-update line 1225.
Unescaped left brace in regex is passed through in regex; marked by <-- HERE in m/\${ <-- HERE ?\w+}?/ at /usr/bin/intltool-update line 1226.
intltool-update: Unable to proceed.
Make sure to run this script inside the po directory.

This is due to changes in Perl 5.26.0.

Solution to this problem: https://launchpadlibrarian.net/216052398/intltool-perl-5.22.patch

Steps to reproduce

Run intltool-update.

Update channel(s)

stable

Package and version

0.51.0-3