[PATCH] resolv.conf: Update MAXNS header reference for resolv.conf(5)

The MAXNS limit mentioned in resolv.conf.5 points to
<res_state.h> instead of <resolv.h> after following glibc change.

500b3a499fff (2017-05-20; "Remove __need_list_t and __need_res_state.")

Signed-off-by: Masanari Iida <[email protected]>
---
 man/man5/resolv.conf.5 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/man/man5/resolv.conf.5 b/man/man5/resolv.conf.5
index 8e914f12a18d..89f9d903a1e3 100644
--- a/man/man5/resolv.conf.5
+++ b/man/man5/resolv.conf.5
@@ -50,7 +50,7 @@ or an IPv6 address in colon (and possibly dot) notation as per RFC 2373.
 Up to
 .B MAXNS
 (currently 3, see
-.IR <resolv.h> )
+.IR <res_state.h> )
 name servers may be listed,
 one per keyword.
 If there are multiple servers,
-- 
2.25.0