fix(coreos_startup): explicitly run with bash
fix(coreos_startup): explicitly run with bash

Change #! from sh to bash since it uses bash-only features.

coreos/init,crawford/init,endocode/init,zhang0137/init,zhang0137/init,BugRoger/init,endocode/init,crawford/init,coreos/init,BugRoger/init,coreos/init,nicescale/init,nicescale/init