Updated rlocus.py to remove warning by sisotool with rlocus_grid=True

nirjhar-das · web-flow · commit 6a6ecbb3f1be · 2021-04-29T04:12:27.000+05:30
At line 239 in rlocus.py parameter passed to _sgrid_func() has been corrected. It was giving error when calling sisotool() with parameter rlocus_grid=True.
diff --git a/control/rlocus.py b/control/rlocus.py
@@ -236,7 +236,7 @@ def root_locus(sys, kvect=None, xlim=None, ylim=None,
             if isdtime(sys, strict=True):
                 zgrid(ax=ax)
             else:
-                _sgrid_func(f)
+                _sgrid_func(fig=fig)
         elif grid:
             if isdtime(sys, strict=True):
                 zgrid(ax=ax)
