Resolve gratuitous tabs in SQL file

src/backend/catalog/system_views.sql

@@ -1084,10 +1084,10 @@ CREATE VIEW pg_stat_progress_basebackup AS
                       WHEN 4 THEN 'waiting for wal archiving to finish'
                       WHEN 5 THEN 'transferring wal files'
                       END AS phase,
-	CASE S.param2 WHEN -1 THEN NULL ELSE S.param2 END AS backup_total,
-	S.param3 AS backup_streamed,
-	S.param4 AS tablespaces_total,
-	S.param5 AS tablespaces_streamed
+        CASE S.param2 WHEN -1 THEN NULL ELSE S.param2 END AS backup_total,
+        S.param3 AS backup_streamed,
+        S.param4 AS tablespaces_total,
+        S.param5 AS tablespaces_streamed
     FROM pg_stat_get_progress_info('BASEBACKUP') AS S;
 
 CREATE VIEW pg_user_mappings AS