stream-clone-test: simplify the background file closing test
Here we just care about the fact the background file closing logic actually ran. We don't need to check the details of the cloning.
The details of the output is very fragile and consume a lot of time for little
value when adjusting formats, caches, and protocol. So we filter it out.
# See http://EditorConfig.org for the specification
root = true
[*.py]
indent_size = 4
indent_style = space
trim_trailing_whitespace = true
end_of_line = lf
[*.{c,h}]
indent_size = 8
indent_style = tab
trim_trailing_whitespace = true
end_of_line = lf
[*.t]
indent_size = 2
indent_style = space
trim_trailing_whitespace = false
end_of_line = lf