Clarify existing slot wording on cluster start
Clarify argument to dict macro

d is more clear because the type of argument is dict not dictht

Closes #513
redis-cli: fix prompt after shutdown command

Fix redis-cli prompt to state "not connected" after a SHUTDOWN command
is sent.
Add error check for writing RDB checksum

Closes #857
Extend range of bytesToHuman to TB and PB

Also adds a fallthrough case for when given
large values (like overflow numbers of 2^64 by mistake).

Closes #858
Remove unused function

Closes #878
Fix invalid expire error for SET family commands.
Remove unused global variable

It has an important name, but nothing uses it...
Fix memory leak in cluster config parsing

The continue stop us from triggering the
free after the long line for loop, so add it
earlier.