chore: fix typo in Makefile (#1562)
chore: fix typo in Makefile (#1562)

This is a change that should have been made in #1543
resin-io/herostratus,resin-io/etcher,resin-io/etcher,resin-io/resin-etcher,resin-io/resin-etcher,resin-io/herostratus,resin-io/etcher,resin-io/etcher,resin-io/etcher