* utils/hbmk2/hbmk2.prg
! Fixed typo in recent header detection changes causing -inc
mode to always rebuild target.
+ Added support for multiple -depkeyhead= option, which means
that multiple alternative key headers can be specified and
the first match of any of them will satisfy the dependency.
! Fixed typo causing dependencies to wrongly detected as 'local'.
a9aecafefc