replace shebang => null line in yum-etckeeper.py.

The yum-etckeeper.py is not executable.
But it has a shebang.  So rpmlint is warning.
So Fedora executes "sed -i -e 1d" in etcleeper.spec.
http://pkgs.fedoraproject.org/cgit/etckeeper.git/tree/etckeeper.spec
Upstream should not worry downstreams.
The etckeeper-bzr/__INIT__.py has same problem too.
So I will modify it in other patch.

	modified:   yum-etckeeper.py
replace shebang => null line in __init__.py.

The __init__.py is not executable.
But it has a shebang.  So rpmlint is warning.
So Fedora executes "sed -i -e 1d" in etcleeper.spec.
http://pkgs.fedoraproject.org/cgit/etckeeper.git/tree/etckeeper.spec
Upstream should not worry downstreams.
Please see also:
https://github.com/joeyh/etckeeper/pull/15

	modified:   Makefile
	modified:   etckeeper-bzr/__init__.py
Merge branch 'rpmlintBzr' of https://github.com/MItsutoshiNAKANO/etckeeper
ETCKEEPER_AVOID_PACKAGELIST and AVOID_PACKAGELIST=1 defined in etckeeper.conf

Because it is slow that some package manager make the packagelist(eg, rpm
 -qa), high-level package manager might time out.
If you think that the packagelist is unnecessary, set AVOID_PACKAGELIST=1.
Or if you want to avoid it temporarily,
you can use environment variable ETCKEEPER_AVOID_PACKAGELIST=1 .
(eg, ETCKEEPER_AVOID_PACKAGELIST=1 zypper update).

	modified:   etckeeper
	modified:   etckeeper.8
	modified:   etckeeper.conf
	modified:   pre-install.d/10packagelist