Avoid adding to the changelog executable files added by the second parent.
This was a regression introduced by b51a8138292a.
#!/bin/sh
echo '% Show all commands except debug commands'
hg debugcomplete
echo
echo '% Show all commands that start with "a"'
hg debugcomplete a
echo
echo '% Do not show debug commands if there are other candidates'
hg debugcomplete d
echo
echo '% Show debug commands if there are no other candidates'
hg debugcomplete debug
echo
echo '% Do not show the alias of a debug command if there are other candidates'
echo '% (this should hide rawcommit)'
hg debugcomplete r
echo
echo '% Show the alias of a debug command if there are no other candidates'
hg debugcomplete rawc
echo
echo '% Show the global options'
hg debugcomplete --options | sort
echo
echo '% Show the options for the "serve" command'
hg debugcomplete --options serve | sort
echo
echo '% Show an error if we use --options with an ambiguous abbreviation'
hg debugcomplete --options s
exit 0