[yocto] OE/YoctoProject style guide

[Trevor Woerner]

http://openembedded.org/wiki/StyleGuide and
https://wiki.yoctoproject.org/wiki/Recipe_%26_Patch_Style_Guide describe
different preferred variable ordering (see the R* variables). Do the two
projects recommend different ordering?

The Yocto Project page
https://wiki.yoctoproject.org/wiki/Recipe_%26_Patch_Style_Guide has a
section "Additional MetaData" which says: "all recipes should aim to
specify the following fields..." and then includes several variables
which aren't in the following "preferred variable ordering" list:
BUGTRACKER, LIC_FILES_CHKSUM, DISTRO_PN_ALIAS.