stage1/init: write "subcgroup" file in v2 too
stage1/init: write "subcgroup" file in v2 too

achanda/rkt,lucasallan/rkt,lucasallan/rkt,dgonyeo/rkt,lucasallan/rkt,kinvolk/rkt,jonboulle/rkt,rkt/rkt,alban/rkt,Shashwatsh/rkt,kinvolk/rkt,Shashwatsh/rkt,dgonyeo/rkt,squeed/rkt,lucasallan/rkt,jakon89/rkt,ybubnov/rkt,shobhit85/rkt,nhlfr/rkt,nhlfr/rkt,dgonyeo/rkt,intelsdi-x/rkt,achanda/rkt,achanda/rkt,rkt/rkt,shobhit85/rkt,cab105/rkt,joshix/rkt,ybubnov/rkt,joshix/rkt,cab105/rkt,kinvolk/rkt,alban/rkt,coreos/rkt,nhlfr/rkt,intelsdi-x/rkt,jakon89/rkt,alban/rkt,coreos/rkt,ybubnov/rkt,rkt/rkt,rkt/rkt,kinvolk/rkt,cab105/rkt,joshix/rkt,squeed/rkt,jakon89/rkt,Shashwatsh/rkt,jonboulle/rkt,sstabellini/rkt,shobhit85/rkt,joshix/rkt,sstabellini/rkt,coreos/rkt,sstabellini/rkt,squeed/rkt,intelsdi-x/rkt,jonboulle/rkt