Robert Watson 75d7ed1ed6 Alow dirname(1) to accept multiple arguments in the same way that
basename(1) does.

(Two different PRs contained identical patches, both cited below)

PR:		121520, 86148
Submitted by:	Ighighi <ighighi at gmail dot com>
Submitted by:	Leif Neland <leif at neland dot dk>
MFC after:	3 days
2009-02-02 11:19:56 +00:00
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