better OID printing

libasn1print/asn1print.c

tests/04-enum-SE.asn1.-E

tests/07-int-OK.asn1.-EF

tests/14-resolver-OK.asn1.-EF

tests/16-constraint-OK.asn1.-EF

tests/19-param-OK.asn1.-EF

tests/20-constr-OK.asn1.-EF

tests/21-tags-OK.asn1.-EF

tests/22-tags-OK.asn1.-EF

tests/23-bits-OK.asn1.-EF

tests/24-sequence-OK.asn1.-EF

tests/31-set-of-OK.asn1.-EF

tests/32-sequence-of-OK.asn1.-EF

tests/34-class-OK.asn1.-EF

tests/37-indirect-choice-OK.asn1.-EF

tests/42-real-life-OK.asn1.-EF

.../45-undefined-type-SE.asn1.-EFfknown-extern-type=KnownExt

tests/49-real-life-OK.asn1.-E

tests/50-constraint-OK.asn1.-EFprint-constraints

tests/55-components-of-OK.asn1.-EF