dev-lang/scheme2c: Fix sed script that was broken by 7950, add keywords back. Keyword...

dev-lang/scheme2c: Fix sed script that was broken by 7950, add keywords back. Keywords are important to this ebuild, as everyone discussed and agreed on IRC when this ebuild was approved. There are plenty of other live ebuilds, over 250 in the official gentoo tree alone, that have keywords; this is nothing special and no policy exists that live ebuilds should have no keywords. Please read the gentoo ebuild policy handbook, it clearly states that live ebuilds may have keywords as long as they are masked with ~

svn path=/sunrise/; revision=7960