Function cluuname::build::custom

pub fn custom<'a>(
    a1: &'a CStr, 
    a2: &'a CStr, 
    a3: &'a CStr, 
    a4: &'a CStr, 
    a5: &'a CStr
) -> impl UtsName + 'a

Create custom uname

sysname:	a1
nodename:	a2
release:	a3
version:	a4
machine:	a5

#[cfg(feature = "enable_domainname")]
domainname:	a6