httpservice: move sys.exit() out of serve_forever()
This is a simple refactoring to show the callers of the method, so
it's easier to reason about the impact of removing the `sys.exit()`
calls in subsequent patches.
Differential Revision: https://phab.mercurial-scm.org/D9270
# 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