Clarify error return statement a bit in the late specializer
Clarify error return statement a bit in the late specializer

gdementen/numba,cpcloud/numba,shiquanwang/numba,numba/numba,stonebig/numba,GaZ3ll3/numba,stefanseefeld/numba,cpcloud/numba,pitrou/numba,jriehl/numba,gdementen/numba,gdementen/numba,pombredanne/numba,ssarangi/numba,gmarkall/numba,stefanseefeld/numba,stuartarchibald/numba,sklam/numba,ssarangi/numba,ssarangi/numba,stonebig/numba,pombredanne/numba,stonebig/numba,seibert/numba,jriehl/numba,pombredanne/numba,IntelLabs/numba,sklam/numba,stuartarchibald/numba,stefanseefeld/numba,jriehl/numba,stuartarchibald/numba,IntelLabs/numba,seibert/numba,sklam/numba,stuartarchibald/numba,pombredanne/numba,pitrou/numba,pitrou/numba,stefanseefeld/numba,pitrou/numba,sklam/numba,ssarangi/numba,cpcloud/numba,gmarkall/numba,pitrou/numba,pombredanne/numba,stefanseefeld/numba,jriehl/numba,stonebig/numba,jriehl/numba,stonebig/numba,gmarkall/numba,gdementen/numba,numba/numba,cpcloud/numba,GaZ3ll3/numba,seibert/numba,gmarkall/numba,gdementen/numba,gmarkall/numba,stuartarchibald/numba,seibert/numba,IntelLabs/numba,IntelLabs/numba,numba/numba,seibert/numba,numba/numba,GaZ3ll3/numba,shiquanwang/numba,IntelLabs/numba,ssarangi/numba,numba/numba,shiquanwang/numba,GaZ3ll3/numba,sklam/numba,GaZ3ll3/numba,cpcloud/numba