Docs still unclear on integrity

[Askar Safin]

Hi. I installed lzip 1.23-3 to my debian from debian repo. Is it true
that default decompression mode (i. e. lzip -d file.lz) verifies
archive? "man lzip" doesn't say anything about this.

Also, is it true that compressed file truncation is absolutely always
detected? (Multiply bit flips are hard to detect with absolute
guarantee, but I think it is quite possible to always detect file
truncation.) Is file truncation detected in default mode (lzip -d
file.lz)? "man lzip" is silent on this