semanage: "semanage user" does not use -s, fix documentation

Both "semanage user --help" and "man 8 semanage-user" state that
"semanage user" accepts option -s, but this is incorrect: -s is not
needed to specify the SELinux user on the command line, contrary to
"semanage login" for example. Fix the documention.

While at it, remove many spaces from the helptext of option --roles. I
do not know where they came from, but they were reduced to a single
space when displayed anyway.

Signed-off-by: Nicolas Iooss <nicolas.iooss@m4x.org>
2 files changed