K 10
svn:author
V 4
ngie
K 8
svn:date
V 27
2019-01-23T23:06:39.326860Z
K 7
svn:log
V 505
Unbreak the gcc build with sendfile_test after r343362

gcc 8.x is more pedantic than clang 7.x with format strings and the tests
passed `void*` variables while supplying `%s` (which is technically
incorrect).

Make the affected `void*` variables use `char*` storage instead to address
this issue, as the compiler will upcast the values to `char*`.

MFC after:	1 month
MFC with:	r343362
Approved by:	emaste (mentor; implicit)
Reviewed by:	asomers
Differential Revision: https://reviews.freebsd.org/D18934

END