Final part of the fixes for CVE-2020-5208, see
https://github.com/ipmitool/ipmitool/security/advisories/GHSA-g659-9qxw-p7cp
9 variants of stack buffer overflow when parsing `id_string` field of
SDR records returned from `CMD_GET_SDR` command.
SDR record structs have an `id_code` field, and an `id_string` `char`
array.
The length of `id_string` is calculated as `(id_code & 0x1f) + 1`,
which can be larger than expected 16 characters (if `id_code = 0xff`,
then length will be `(0xff & 0x1f) + 1 = 32`).
In numerous places, this can cause stack buffer overflow when copying
into fixed buffer of size `17` bytes from this calculated length.
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