fix logic for list length overload
fix logic for list length overload

This reads a bit better.

jriehl/numba,IntelLabs/numba,cpcloud/numba,stuartarchibald/numba,gmarkall/numba,seibert/numba,cpcloud/numba,cpcloud/numba,seibert/numba,stuartarchibald/numba,seibert/numba,seibert/numba,stonebig/numba,sklam/numba,numba/numba,stuartarchibald/numba,IntelLabs/numba,jriehl/numba,numba/numba,gmarkall/numba,sklam/numba,stonebig/numba,IntelLabs/numba,stonebig/numba,gmarkall/numba,stonebig/numba,sklam/numba,IntelLabs/numba,sklam/numba,jriehl/numba,cpcloud/numba,stuartarchibald/numba,seibert/numba,cpcloud/numba,numba/numba,IntelLabs/numba,gmarkall/numba,sklam/numba,gmarkall/numba,stonebig/numba,stuartarchibald/numba,jriehl/numba,numba/numba,numba/numba,jriehl/numba