Work around strange Python anomaly

Apparently, `True` is both an instance of `int` and `bool`, which is a
change and is very strange. Instead flip the conditional here.

client-cli/pvc/cli/cli.py

@@ -93,14 +93,14 @@ def finish(success=True, data=None, formatter=None):
         else:
             echo(CLI_CONFIG, data)
 
-    # Allow passing
-    if isinstance(success, int):
-        exit(success)
-
+    # Allow passing raw values if not a bool
+    if isinstance(success, bool):
         if success:
             exit(0)
         else:
             exit(1)
+    else:
+        exit(success)
 
 
 def version(ctx, param, value):