[Dev] [PATCH] src/lib/librelib: separate LIBRETOOLS_LIBDIR by ':' and consider each part as a candidate for searching the requested script

[bill-auger]

i presume this is for example, to locate the pvm bootstrap common
lib - i had the same idea myself - as long as the change is
backward-compatible, it should not be any problem - that is
important though because several other parts of the system
depend on that mechanism, especially important are the
autobuilder and login auth on the servers