Strace-process-tree

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* Colorize the output if your terminal supports color.
* Command-line options --color/--no-color if you don't want autodetection.
* Use ASCII art if your locale does not support UTF-8.
* Command-line options --ascii/--unicode if you don't want autodetection.
* Speed up strace log parsing by 40%.

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* Show process running times when the strace log has timestamps
(i.e. -t/-tt/ -ttt was passed to strace).
* Fix tree construction to avoid duplicating processes when execve()
shows up in the log before the parent's clone() resumes.

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* Moved to its own repository on GitHub, added a README and this changelog.
* First release to PyPI.

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* Use Python 3 by default.

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* Parse more strace log variations: pids shown as "[pid NNN]", timestamps
formatted as "HH:MM:SS.ssss" (strace -t/-tt versus -ttt that we already
handled).

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* Do not lose information on repeated execve() calls.