bpo-41340: Removed strcpy from strdup function #21544
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strdup implementation inside cpython/Python/strdup.c is not the best one.
It calls strlen + strcpy, which is the same as calling strlen twice + memcpy.
So I replaced it by the call of strlen + memcpy.
It is easy to look any implementation in any library.
Here for example:
https://code.woboq.org/userspace/glibc/string/strdup.c.html
https://bugs.python.org/issue41340