meta: remove consecutive blank lines

Some of them were introduced by mass-removal of S = WORKDIR/git assignments;
rather than try to fix up (or redo) just these, I've run this sed command over
the whole tree:

sed -i -z -E 's/([ \t\f\v\r]*\n){3,}/\n\n/g' `find . -name *.bb -o -name *.inc`

The rationale is that more than one empty line is wasting vertical screen space, and
does nothing for readability.

(From OE-Core rev: cedc4ff7c9bcfb22a20e43e47f9759f4007a4f1a)

Signed-off-by: Alexander Kanavin <alex@linutronix.de>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/dnf/dnf_4.22.0.bb

@@ -23,7 +23,6 @@ SRC_URI:append:class-native = " file://0001-dnf-write-the-log-lock-to-root.patch
 SRCREV = "da9a7066be8e1628d9453428d33685225cd9c90d"
 UPSTREAM_CHECK_GITTAGREGEX = "(?P<pver>\d+(\.\d+)+)"
 
-
 inherit cmake gettext bash-completion setuptools3-base systemd
 
 DEPENDS += "libdnf librepo libcomps"