The generated command line length shall be the sum of the size in bytes of the utility name and
each argument treated as strings, including a null byte terminator for each of these strings. The
xargs utility shall limit the command line length such that when the command line is invoked,
the combined argument and environment lists (see the exec family of functions in the System
Interfaces volume of IEEE Std 1003.1-2001) shall not exceed {ARG_MAX}-2 048 bytes. Within
this constraint, if neither the -n nor the -s option is specified, the default command line length
shall be at least {LINE_MAX}.