CA-129230: Split long message in syslog

Problem: Long messages will be truncated in syslog. That makes
debugging difficult.

Solution: Split messages into several lines by charactor LF and send
each of them to syslog. Lines that are still very long will also be cut
to sub-lines to fit the line length limitation of syslog.

Signed-off-by: Kaifeng Zhu <kaifeng.zhu@citrix.com>