BUG: fix a regression where np.linspace's num argument would be ignored for unyt_arrays
#1993
| Job | Run time |
|---|---|
| 2m 48s | |
| 53s | |
| 53s | |
| 1m 9s | |
| 4m 17s | |
| 3m 25s | |
| 50s | |
| 1m 49s | |
| 16m 4s |