MFC r313924,r313925:

r313924:

Quote path to doxygen/kyua in test(1) -x check

This is a basic stopgap against ${LOCALBASE} containing spaces in it

r313925:

Include ${LOCALBASE}/bin in $PATH when running "make checkworld"

Some of the tests in devel/atf // devel/kyua rely on the tools being in $PATH,
which means that the tests fail when run via "make checkworld" because $PATH
is restricted to exclude directory elements like "${LOCALBASE}/bin".