pg_dump/t/002: append terminating semicolon to SQL commands

It's easy to overlook the need for one, and its lack is annoying for the
next developer wanting to create a new test.  Rather than expect every
individual command to add the semicolon, just append one automatically.

Discussion: http://postgr.es/m/20170503172746.rwftidszir67sgk7@alvherre.pgsql

src/bin/pg_dump/t/002_pg_dump.pl

@@ -6414,7 +6414,8 @@ foreach my $test (
 			next;
 		}
 
-		$create_sql .= $tests{$test}->{create_sql};
+		# Add terminating semicolon
+		$create_sql .= $tests{$test}->{create_sql} . ";";
 	}
 }