* utils/hbrun/hbrun.prg
! Do not process HB_INSTALL_INC to find external headers.
This envvar is no longer supported and it only makes
things more difficult now that hbrun has embedded headers.
Also removed adding the host dir of input .hbs/.prg file
as -I option (it's processed automatically by compiler).
So now hbrun uses exactly the same rules as harbour
compiler to find headers.
196c5a738c