shellcheck: test_switch_id.sh issues


In test_switch_id.sh line 3:
if test "`id -u`" != '0'; then
         ^-- SC2006: Use $(..) instead of legacy `..`.


In test_switch_id.sh line 8:
if test "`id -u nobody`" = ""; then
         ^-- SC2006: Use $(..) instead of legacy `..`.
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information