ISO 286/14405-1 calls for a plus sign if the limit is positive and a minus sign if the limit is negative. A zero limit should have neither a plus nor a minus sign. This commit adds the plus sign.
ISO 286/14405-1 calls for a plus sign if the limit is positive and a minus sign if the limit is negative. A zero limit should have neither a plus nor a minus sign. This commit adds the plus sign.