Fix thinko with definition of REINDEXOPT_MISSING_OK
This had no direct consequences, but let's be consistent and it would be
confusing when adding new flags.  Oversight in
Reported-by: Justin Pryzby
Discussion:
@@ -3352,7 +3352,7 @@ typedef struct ConstraintsSetStmt
/* Reindex options */
#define REINDEXOPT_VERBOSE (1 << 0) /* print progress info */
#define REINDEXOPT_REPORT_PROGRESS (1 << 1) /* report pgstat progress */
-#define REINDEXOPT_MISSING_OK (2 << 1) /* skip missing relations */
+#define REINDEXOPT_MISSING_OK (1 << 2) /* skip missing relations */
typedef enum ReindexObjectType
{
