Checking MINIMUM_VERSION_FOR_WAL_SUMMARIES

Hi hackers,

during reading the source code of new incremental backup functionality
I noticed that the following condition can by unintentional:

    /*
     * For newer server versions, likewise create pg_wal/summaries
     */
    if (PQserverVersion(conn) < MINIMUM_VERSION_FOR_WAL_SUMMARIES)
    {
        ...

        if (pg_mkdir_p(summarydir, pg_dir_create_mode) != 0 &&
            errno != EEXIST)
            pg_fatal("could not create directory \"%s\": %m", summarydir);
    }

This is from src/bin/pg_basebackup/pg_basebackup.c.

Is the condition correct? Shouldn't it be ">=". Otherwise the function
will create "/summaries" only for older PostgreSQL versions.

I've attached a patch to fix it in case this is a typo.

-- 
Artur