* -a, sets the global allocator
* -k, sets the PKG allocator, overrides -a
* -s, sets the SHM allocator, overrides -a
The maximally supported set of string values for each of these options:
Now, depending whether OpenSIPS was compiled in a more optimized manner,
with less allocators, some of these values MAY not be available, case in
which appropriate error logs will be printed at startup.