Update longer (500 chars) cmd

app.py

@@ -49,11 +49,12 @@ def process(command):
             )  # sp.PIPE: -1
             out, err = proc.communicate()
             # success = True
-            return f"[{out}]", f"[{err}]"
+            return f"[{out}], [{err}]", None
         except Exception as e:
             out, err = "", str(e)
             # success = False
-            return f"[{out}]", f"[{err}]"
+            # return f"[{out}]", f"[{err}]"
+            return f"[{out}], [{err}]", None
 
     # quick test altair altair-save tooltip
     # from PIL import Image