crossbuild.bash: set GOARM=7
crossbuild.bash: set GOARM=7

From https://github.com/golang/go/wiki/GoArm :

  In cross compilation situations, it is recommended
  that you always set an appropriate GOARM value
  along with GOARCH.

The value seems to default to GOARM=5 if not set
during cross-compilation.

rfjakob/gocryptfs,rfjakob/gocryptfs,rfjakob/gocryptfs,rfjakob/gocryptfs