How to set SPHERICAL HARMONICS=false in the input file

I need to run a calculation with SPHERICAL HARMONICS=False, by default it was set to TRUE.
my sample input file is
memory 500 mb
molecule AlCl3 {
Al1 0.0000000000 0.0000000000 0.0000000000
Cl2 2.0882126200 0.0000000000 0.0000000000
Cl3 -1.0441063100 1.8084451774 0.0000000000
Cl4 -1.0441063100 -1.8084451774 0.0000000000
set basis cc-pvdz
set scf_type df
set freeze_core True


set puream false

The default comes with the basis set definition.

Can I ask why you want to do this?