Fix some issues with missing or too many newlines at

end of file.

src/test/regress/expected/join_1.out

@@ -2183,3 +2183,4 @@ SELECT * FROM t3;
  x | y 
 ---+---
 (0 rows)
+

src/test/regress/sql/alter_table.sql

@@ -991,4 +991,4 @@ create function non_strict(text) returns text as
     language sql called on null input;
 select non_strict(NULL);
 alter function non_strict(text) returns null on null input;
-select non_strict(NULL);
+select non_strict(NULL);

src/test/regress/sql/join.sql

@@ -372,4 +372,4 @@ SELECT * FROM t3;
 DELETE FROM t3 USING t1 JOIN t2 USING (a) WHERE t3.x > t1.a;
 SELECT * FROM t3;
 DELETE FROM t3 USING t3 t3_other WHERE t3.x = t3_other.x AND t3.y = t3_other.y;
-SELECT * FROM t3;
+SELECT * FROM t3;

src/test/regress/sql/update.sql

@@ -16,4 +16,4 @@ UPDATE update_test SET a = DEFAULT, b = DEFAULT;
 
 SELECT * FROM update_test;
 
-DROP TABLE update_test;
+DROP TABLE update_test;