[cage] Clarify comments about the library search path
[cage] Clarify comments about the library search path

"parrot/" is not included in the versiondir if the prefix already contains "/parrot"

youprofit/parrot,parrot/parrot,youprofit/parrot,FROGGS/parrot,youprofit/parrot,FROGGS/parrot,parrot/parrot,tkob/parrot,FROGGS/parrot,parrot/parrot,FROGGS/parrot,parrot/parrot,tkob/parrot,FROGGS/parrot,FROGGS/parrot,youprofit/parrot,youprofit/parrot,tkob/parrot,tkob/parrot,tkob/parrot,youprofit/parrot,FROGGS/parrot,youprofit/parrot,tkob/parrot,youprofit/parrot,parrot/parrot,FROGGS/parrot,tkob/parrot,tkob/parrot