[docs] [issue34605] Avoid master/slave terminology

[STINNER Victor]

Change by STINNER Victor <vstinner at redhat.com>:


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components:  -2to3 (2.x to 3.x conversion tool), Argument Clinic, Build, Cross-Build, Demos and Tools, Distutils, Documentation, Extension Modules, FreeBSD, IDLE, IO, Installation, Library (Lib), Regular Expressions, SSL, Tests, Tkinter, Unicode, Windows, XML, ctypes, email, macOS

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue34605>
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