ADflow output is piped to SLSQP.out

[ewu63]

Description

For some reason, when using SLSQP to run aero_opt.py, the iteration history of ADflow is piped to SLSQP.out. It's likely that this includes all Fortran outputs from ADflow.

Steps to reproduce issue

Please provide a minimum working example (MWE) if possible

1. Run aero_opt.py with the default SLSQP optimizer

Current behavior

No ADflow iteration print out to screen. Instead, they are found in SLSQP.out.

Expected behavior

Iteration history should be printed to screen.