bhyveload and bhyvectl wouldn't be checked otherwise as the configure
script wouldn't execute one of the tests:
checking for bhyve... /usr/local/sbin/bhyve
checking for bhyvectl... /usr/local/sbin/bhyvectl
checking for bhyveload... /usr/local/sbin/bhyveload
./configure: line 62602: test: too many arguments
Fix the shell statement testing the 3 binaries.