Compression error on var-logs

[haiqi96]

Bug

The CLP compressor runs into an error when compressing our internal var-log. some example error messages are attached below

2024-01-24 00:57:45,022 [error] Cannot compress hostd-10 - not an IR stream or UTF-8 encoded
2024-01-24 00:57:45,125 [error] Cannot compress hostd-12 - not an IR stream or UTF-8 encoded

Note that 4f9ed0a doesn't have this issue, but we don't know from which commit did the issue start

CLP version

5d6ff54

Environment

ubuntu 22.04

Reproduction steps

./clp c varlog_compressed ///var-logs