K 10
svn:author
V 8
vangyzen
K 8
svn:date
V 27
2015-10-23T15:56:17.604932Z
K 7
svn:log
V 578
resolver: abuse _res a little less

In the past, _res was a global variable.  Now, it's multiple function calls.
Several functions in the resolver use _res multiple times and therefore
call the function(s) far more than necessary.

Fix those callers to store the result of _res in a local variable.

Add __noinline to the definition of res_init() to avoid the code bloat
that these changes would have otherwise incurred.  Thanks to jilles
for noticing this.

Reviewed by:	jilles
MFC after:	1 week
Sponsored by:	Dell Inc.
Differential Revision:	https://reviews.freebsd.org/D3887

END