Fix redundant newline in eval error compiling message

[git-hulk]

redis-cli return the invalid protocol error message: Bad simple string value, when compiling the Lua script with an error:

127.0.0.1:6666> eval @ 0
Error: Bad simple string value

And what we want is to return the compiling error like below：

❯ redis-cli -p 6666 eval @ 0
(error) ERR Error compiling script (new function): user_script:1: unexpected symbol near '@'

The root cause is Kvrocks adds a redundant newline when returning the compiling error, and redis-cli would regard it as an invalid protocol since any newline in the simple string was forbidden: https://github.com/redis/hiredis/blob/04c1b5b0292da1c6515baf6cb5b5b9bb882f38d7/read.c#L370