Make code better readable by replacing `if (rsp->ccode > 0)`
and 'if (rsp->ccode != 0)' with just `if (rsp->ccode)` as
rsp->ccode is anyway an unsigned byte and can't be negative.
Also replace 'if (rsp->ccode == 0)' with 'if (!rsp->ccode)'.
All these changes make lines shorter and easier to read as
a non-zero ccode is an indication of some failure, and so !ccode
naturally reads as 'no error'.
Signed-off-by: Alexander Amelkin <alexander@amelkin.msk.ru>
'picmg led cap' command expects FRU LED Capabilities response
length 5 bytes minimum (excluding the completion code byte),
while it is only 4 bytes long. This patch makes the command
expect 4 bytes instead.
... because people without VITA support don't care about errors related to VITA
discovery. This has been suggested as a part of the ticket and "copied" after
PICMG discovery.
