Initial pgindent run for v12.

This is still using the 2.0 version of pg_bsd_indent.
I thought it would be good to commit this separately,
so as to document the differences between 2.0 and 2.1 behavior.

Discussion: https://postgr.es/m/16296.1558103386@sss.pgh.pa.us

src/backend/optimizer/path/clausesel.c

@@ -161,9 +161,9 @@ clauselist_selectivity_simple(PlannerInfo *root,
 	int			listidx;
 
 	/*
-	 * If there's exactly one clause (and it was not estimated yet), just
-	 * go directly to clause_selectivity(). None of what we might do below
-	 * is relevant.
+	 * If there's exactly one clause (and it was not estimated yet), just go
+	 * directly to clause_selectivity(). None of what we might do below is
+	 * relevant.
 	 */
 	if ((list_length(clauses) == 1) &&
 		bms_num_members(estimatedclauses) == 0)

src/backend/optimizer/util/inherit.c

@@ -311,6 +311,7 @@ expand_partitioned_rtentry(PlannerInfo *root, RelOptInfo *relinfo,
 	if (!root->partColsUpdated)
 		root->partColsUpdated =
 			has_partition_attrs(parentrel, parentrte->updatedCols, NULL);
+
 	/*
 	 * There shouldn't be any generated columns in the partition key.
 	 */

src/backend/optimizer/util/pathnode.c

@@ -3621,7 +3621,7 @@ create_limit_path(PlannerInfo *root, RelOptInfo *rel,
  */
 void
 adjust_limit_rows_costs(double *rows,	/* in/out parameter */
-						Cost *startup_cost,	/* in/out parameter */
+						Cost *startup_cost, /* in/out parameter */
 						Cost *total_cost,	/* in/out parameter */
 						int64 offset_est,
 						int64 count_est)