I am not sure in this point. It is aligned left with all long options:
-?, --help show this help, then exit --help-variables list of available configuration variables (options), then exit
pg_dumpall aligns all options left with each other, whether they are short or long.
-x, --no-privileges do not dump privileges (grant/revoke) --binary-upgrade for use by upgrade utilities only --column-inserts dump data as INSERT commands with column names
