tests: fix http-bad-server expected errors for python 3.10 (issue6643)
The format of the error message changed with this version of Python.
This also removes obsolete Python 3 checks.
%include map-cmdline.default
[templates]
# Override base templates
changeset = '{cset}{branches}{bookmarks}{tags}{parents}{luser}{ldate}{summary}{lfiles}\n'
changeset_verbose = '{cset}{branches}{bookmarks}{tags}{parents}{luser}{ldate}{description}{lfiles}\n'
changeset_debug = '{fullcset}{branches}{bookmarks}{tags}{lphase}{parents}{manifest}{luser}{ldate}{extras}{description}{lfiles}\n'
# Override the file templates
lfiles = '{if(files,
label('ui.note log.files',
'files:\n'))}{lfile_mods}{lfile_adds}{lfile_dels}'
lfile_adds = '{file_adds % "{lfile_add}{lfile_src}"}'
lfile_mods = '{file_mods % "{lfile_mod}{lfile_src}"}'
lfile_add = '{label("status.added", "A {file}\n")}'
lfile_mod = '{label("status.modified", "M {file}\n")}'
lfile_src = '{ifcontains(file, file_copies_switch,
label("status.copied", " {get(file_copies_switch, file)}\n"))}'
lfile_dels = '{file_dels % "{label('status.removed', 'R {file}\n')}"}'