/usr/ucb contains a special cc compiler that is not supported by our project system. /usr/ucb/cc is a legacy compiler
that is rarely used. We should not add it to the default of set of compiler sets.
changeset 3295dfdf629b in main
136116 should not look in /usr/ucb/bin for compilers on Solaris
QA: To test this fix, run on a Solaris machine with /usr/ucb/cc and verify the compiler set SunUCB is not created by default. It is still possible to manually
create a compiler set from /usr/ucb but you will have manually name it and chose it's family. SunUCB is no longer a choice as a family.
verified in trunk build 20080604
fix backported into release61_fixes branch