BaseTools/Scripts/GetMaintainer: Fix logic bug collecting maintainers

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4593

Fix logic bug where maintainers is incorrectly added to lists.

Cc: Rebecca Cran <[email protected]>
Cc: Liming Gao <[email protected]>
Cc: Bob Feng <[email protected]>
Cc: Yuwei Chen <[email protected]>
Cc: Leif Lindholm <[email protected]>
Signed-off-by: Michael D Kinney <[email protected]>
Acked-by: Rebecca Cran <[email protected]>
Reviewed-by: Leif Lindholm <[email protected]>

BaseTools/Scripts/GetMaintainer.py

@@ -88,7 +88,7 @@ def get_section_maintainers(path, section):
             if isinstance(address, list):
                 maintainers += address
             else:
-                lists += [address]
+                maintainers += [address]
         for address in section['list']:
             # Convert to list if necessary
             if isinstance(address, list):