packages feed

pandoc-3.10: test/command/10855.md

```
% pandoc -t markdown
+----------+----+
| h1       | h2 |
+:===:+===:+:===+
| A        | B  |
+-----+----+----+
| C   | D  | E  |
+-----+----+----+
^D
+-------------+----+
| h1          | h2 |
+:====:+=====:+:===+
| A           | B  |
+------+------+----+
| C    | D    | E  |
+------+------+----+

```

```
% pandoc -t markdown
+-----+----+----+
| h1  | h2 | h3 |
+:===:+===:+:===+
| A        | B  |
+-----+----+----+
| C   | D  | E  |
+-----+----+----+
^D
+------+------+----+
| h1   | h2   | h3 |
+:====:+=====:+:===+
| A           | B  |
+------+------+----+
| C    | D    | E  |
+------+------+----+

```

```
% pandoc -t markdown
+:------:+:-----------:+
| hello  | ![a](b.png) |
+--------+-------------+
| hello  | ![c](b.png) |
+--------+-------------+
^D
+:------:+:-----------:+
| hello  | ![a](b.png) |
+--------+-------------+
| hello  | ![c](b.png) |
+--------+-------------+

```

```
% pandoc -t markdown
+:------:+:-----------:+
| hello  | ![a](b.png) |
+--------+-------------+
| hello  | ![c](b.png) |
+--------+-------------+
^D
+:------:+:-----------:+
| hello  | ![a](b.png) |
+--------+-------------+
| hello  | ![c](b.png) |
+--------+-------------+

```