K 10
svn:author
V 6
kevans
K 8
svn:date
V 27
2018-01-05T01:46:41.307493Z
K 7
svn:log
V 498
hexdump(1): Speed up -s flag on devices

Using the -s flag on devices is extraordinarily slow due to using fseek(3) a
little too conservatively. Address this by using fseek on character/block
devices as well, falling back to getchar(3) only if we fail to seek or we're
operating on tape drives, where fseek may succeed while not actually being
supported.

PR:		86485
Submitted by:	arundel (originally; modified since then)
Reviewed by:	cem
Differential Revision:	https://reviews.freebsd.org/D10939

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