Linux --> POSIX based OS

Co-authored-by: Mikhail Efimov <efimov.mikhail@gmail.com>

Author: ivanbelenky

Doc/library/sysconfig.rst

@@ -382,7 +382,7 @@ Other functions
 
    Examples of returned values:
 
-   Linux
+   POSIX based OS:
 
    - linux-i586
    - linux-i686