resolv.conf.5: tfix

Change `RES_USE_EDNSO` to `RES_USE_EDNS0`, defined in
`resolv.h`.  (This is written correctly in `man3/resolver.3` in this
same repo.)  Helps with grepping and internet searches!

Signed-off-by: John Morris <john@zultron.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

diff --git a/man5/resolv.conf.5 b/man5/resolv.conf.5
index c1b3d017aacb7f5db4df28017d5672bc10c83195..8ed9589329181140461ae2bfa5674fd49796da26 100644 (file)
--- a/man5/resolv.conf.5
+++ b/man5/resolv.conf.5
@@ -264,7 +264,7 @@ these options were removed in glibc 2.25.
 .TP
 .BR edns0 " (since glibc 2.6)"
 Sets
-.BR RES_USE_EDNSO
+.BR RES_USE_EDNS0
 in
 .IR _res.options .
 This enables support for the DNS extensions described in RFC\ 2671.