Change: Local software dir definition
Change: Local software dir definition

HPUX $(sys.flavour) includes a version that does not align with other
software update directories. Switch hpux to use $(sys.class)_$(sys.arch)
and refactor all platforms to use a common variable for the package dir
for good hygiene.

phnakarin/masterfiles,martingehrke/masterfiles,phnakarin/masterfiles,martingehrke/masterfiles,martingehrke/masterfiles,frap/masterfiles-1,maciejmrowiec/masterfiles,phnakarin/masterfiles,frap/masterfiles-1,maciejmrowiec/masterfiles,frap/masterfiles-1,maciejmrowiec/masterfiles