fix some cf issues

modules/util/viirs_l1b_l2.py

@@ -256,6 +256,7 @@ def test_nlcomp(file):
     keep_3 = np.logical_and(np.invert(np.isnan(cld_dz)), cld_dz > 5.0)
 
     keep = keep_0 & keep_1 & keep_2 & keep_3
+
     cld_phs = cld_phs[keep]
     reff = reff[keep]
     opd = opd[keep]