K 10
svn:author
V 4
ngie
K 8
svn:date
V 27
2017-03-21T20:48:36.141936Z
K 7
svn:log
V 295
kvm_write: fix -Wcast-qual warning in pointer arithmetic argument

Cast buf to `const char *` when doing arithmetic operation to match
`cp`'s type [1].

Differential Revision:	D10082
MFC after:	1 week
Reviewed by:	cem (earlier diff), vangyzen
Submitted by:	cem [1]
Sponsored by:	Dell EMC Isilon

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