[Pkg-mozext-maintainers] Bug#906355: form-history-control: FTBFS in buster/sid (SyntaxError: invalid syntax)

[Santiago Vila]

Package: src:form-history-control
Version: 2.0.3.2+dfsg-1
Severity: serious
Tags: ftbfs

Dear maintainer:

I tried to build this package in buster but it failed:

--------------------------------------------------------------------------------
[...]
 debian/rules build-indep
dh build-indep --with webext
   dh_update_autotools_config -i
   dh_autoreconf -i
   create-stamp debian/debhelper-build-stamp
 fakeroot debian/rules binary-indep
dh binary-indep --with webext
   dh_testroot -i
   dh_prep -i
   debian/rules override_dh_webext
make[1]: Entering directory '/<<BUILDDIR>>/form-history-control-2.0.3.2+dfsg'
dh_webext . form-history-control
  File "/usr/bin/dh_webext", line 64
    print(self_script + ":", *args)
                             ^
SyntaxError: invalid syntax
make[1]: *** [debian/rules:12: override_dh_webext] Error 1
make[1]: Leaving directory '/<<BUILDDIR>>/form-history-control-2.0.3.2+dfsg'
make: *** [debian/rules:9: binary-indep] Error 2
dpkg-buildpackage: error: fakeroot debian/rules binary-indep subprocess returned exit status 2
--------------------------------------------------------------------------------

The build was made with "dpkg-buildpackage -A" in my autobuilder.
Most probably, it also fails here in reproducible builds:

https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/form-history-control.html

where you can get a full build log if you need it.

If this is really a bug in one of the build-depends, please use reassign and affects,
so that this is still visible in the BTS web page for this package.

Thanks.