[issue22336] _tkinter should use Python PyMem_Malloc() instead of Tcl ckalloc()

[STINNER Victor]

STINNER Victor added the comment:

>        PyMem_Free(FREECAST argv);

FREECAST can be dropped here, PyMem_Free() always takes a void* pointer.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue22336>
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