typing: fix a suppression directive that was mangled by black formatting
It looks like black is moving comments needed by pytype out of position, and
causing some things that should be disabled to be enforced anyway.
Differential Revision: https://phab.mercurial-scm.org/D10165
#require docutils gettext
$ $TESTDIR/check-gendoc de
checking for parse errors
Die Dateien werden dem Projektarchiv beim n\xc3\xa4chsten \xc3\x9cbernehmen (commit) hinzugef\xc3\xbcgt. Um dies vorher r\xc3\xbcckg\xc3\xa4ngig zu machen, siehe:hg:`forget`. (esc)
warning: please have a space before :hg: