(Merge 3.3) pythonrun.c: fix Py_GetPythonHome(), use Py_ARRAY_LENGTH() to get
the size of the env_home buffer, not PATH_MAX+1. env_home is declared using MAXPATHLEN+1, and PATH_MAX is not declared on IRIX.
V
Victor Stinner committed
b5a7a0aa3f9360a84fd5e96e415af277156d4988