common.mk: clean more files
common.mk (distclean-local): clean fake file.
common.mk (realclean-local): clean generated files under srcdir.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48681 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
common.mk: clean more files
common.mk (distclean-local): clean fake file.
common.mk (realclean-local): clean generated files under srcdir.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48681 b2dd03c8-39d4-4d8f-98ff-823fe69b080e