A recent update of flake8 in CI introduced a new check E741. It
basically checks that variables are at least 3 characters long. Up to
now, however, we have used shorter names in some places - all of them
turn out to be "l" for a line of text.
Replace all those "l" variables with "line".
Fixes: https://gitlab.com/buildroot.org/buildroot/-/jobs/1687009829
partially:
support/scripts/boot-qemu-image.py:47:21: E741 ambiguous variable name 'l'
support/scripts/check-dotconfig.py:20:38: E741 ambiguous variable name 'l'
support/scripts/size-stats:76:13: E741 ambiguous variable name 'l'
support/testing/tests/core/test_bad_arch.py:17:32: E741 ambiguous variable name 'l'
support/testing/tests/package/test_python_treq.py:10:30: E741 ambiguous variable name 'l'
support/testing/tests/toolchain/test_external.py:30:42: E741 ambiguous variable name 'l'
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>