Add test for keyword arg on .sum-like and .cumsum-like array methods
Add test for keyword arg on .sum-like and .cumsum-like array methods

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