- align cpp line continuations, i.e. backslashes
- trim empty lines before else statements
- add simple mode (`-s`) intended to simplify the source code:
* removal of redundant parenthesis around return expressions
* removal of redundant curly braces around oneline statements
* do not mix presence and absence of curly braces around if/else
statements if at least one statement cannot fit on a single line
- honor existing new lines among functions arguments
- honor space before goto labels
- remove extra space before attribute succeeding struct declarations
- do not confuse queue(3) macros as declarations
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