|  | @@ -654,9 +654,11 @@ $Id$
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				|  |  |  2.3. Nonterminals in router descriptors
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				|  |  | -   nickname ::= between 1 and 19 alphanumeric characters, case-insensitive.
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				|  |  | -   hexdigest ::= a '$', followed by 20 hexadecimal characters.
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				|  |  | -      [Represents a server by the digest of its identity key.]
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				|  |  | +   nickname ::= between 1 and 19 alphanumeric characters ([A-Za-z0-0]),
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				|  |  | +      case-insensitive.
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				|  |  | +   hexdigest ::= a '$', followed by 40 hexadecimal characters
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				|  |  | +      ([A-Fa-f0-9]). [Represents a server by the digest of its identity
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				|  |  | +      key.]
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				|  |  |     exitpattern ::= addrspec ":" portspec
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				|  |  |     portspec ::= "*" | port | port "-" port
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