pg_dump --help: pg_dump exports a PostgreSQL database as an SQL script or to other formats.
pg_dumpall --help: pg_dumpall exports a PostgreSQL database cluster as an SQL script or to other formats.
(Note: Uses the verb "export", to align with commit 4f29394ea94.)
pg_restore --help: [unchanged] pg_restore restores PostgreSQL databases from archives created by pg_dump or pg_dumpall.
man pages: pg_dump - export a PostgreSQL database as an SQL script or to other formats pg_dumpall - export a PostgreSQL database cluster as an SQL script or to other formats
pg_restore - restore PostgreSQL databases from archives created by pg_dump or pg_dumpall
Since we are using "a PostgreSQL database" and "a PostgreSQL cluster" with pg_dump and pg_dumpall respectively, it makes sense to use the same wording for pg_restore. Th description at [1] already does that, except it needs small tweaks like below:
pg_restore - restore a PostgreSQL database or a PostgreSQL cluster from an archive created by pg_dump or pg_dumpall respectively.