tests/test-wireproto.py.out

graphmod: disable graph styling when HGPLAIN is set (issue5212)

Produce stable output for tools to rely on by hardcoding all edge styles to
"|". This ensures that any tool parsing the output of hg log -G still gets the
same behaviour as pre-3.8 releases.

Hello, Foobar
['Hello, Fo, =;:<o', 'Hello, Bar']