chmod remote file copied by ssh to be all-readable

This is for the case where remote umask is not world-readable:
something like 0027 or even 0077 (not even group-readable).

Remote file copied to /.well-known/ should perhaps be world-readable.
It really depends on web server configuration but we assume the most
common configuration.

getssl

@@ -516,6 +516,7 @@ copy_file_to_location() { # copies a file, using scp, sftp or ftp if required.
         error_exit "problem copying file to the server using scp.
         scp $from ${to:4}"
       fi
+      ssh "$servername" "chmod a+r $tofile"
       debug "userid $TOKEN_USER_ID"
       if [[ "$cert" == "challenge token" ]] && [[ ! -z "$TOKEN_USER_ID" ]]; then
         servername=$(echo "$to" | awk -F":" '{print $2}')