Unlike python-requests, the httpx client has a default
timeout of 5 seconds on its class and functions. As such,
there is no need for Bandit to check for an undefined
timeout. However, explicitly setting the timeout to None
is still a potential problem as that would create a
situtation where the client would block forever.

Fixes: PyCQA#1175

Signed-off-by: Eric Brown <[email protected]>

This change introduces a new feature that will suggest a fix in
the form of a line of code as replacement for the line range of
the issue.

This is the first step to have the ability to auto-correct problems
detected. Later more changes can be merged to modify the file with
the suggested fix.

The Issue class has a new fix string attribute that denotes how
the lines of affected code can be replaced. This suggested fix
will not preserve code comments and possibly other optimizations
the AST does not capture.

Closes PyCQA#439

Signed-off-by: Eric Brown <[email protected]>
Signed-off-by: Eric Brown <[email protected]>