It does no good: normally we have -v for chown so once it no longer has
an effect we can know, but in this case these chown commands will never
have no effect. And a huge amount of output with -v wastes the server
storage and bandwidth (for both the server and the people reading the
build logs).
"gcc(1)" is really not a file name.
Use <ulink> and link to the online man page on
https://man.archlinux.org/ so the user can refer to the man pages more
easily.
The change is done via a sed command and long lines are wrapped
manually.