Fix broken flake8 configuration and flake8 errors which were hidden by this breakage. flake8 --filename options doesn't work as expected: * it's expected to be a shell pattern, using stdlib's fnmatch.fnmatch function internally. This funciton thinks that 'cubicweb/x.py' doesn't match 'cubicweb/x.py' (there must be a reason but that's not the point), hence no file was actually checked ; * as this is a list of pattern, each encountered file is checked against each pattern, leading to run time explosion. So maintain list of files to check in a separated file and give this list to flake8 using unix's xarg command.

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#! /bin/sh -e

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case "$1" in

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    remove)

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	if [ -x "/etc/init.d/cubicweb-ctl" ]; then

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	    invoke-rc.d cubicweb-ctl stop || true

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	fi

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    ;;

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esac

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#DEBHELPER#

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exit 0