[PATCH ethtool-next 4/5] man: fix typo for "rmon" standard stat type

Due to ".RN" instead of ".RB", "[rmon]" string was always being
omitted from the SYNOPSIS part.

Fixes: f8d2bc2ccd8b ("netlink: add support for standard stats")
Signed-off-by: Alexander Lobakin <redacted>
Reviewed-by: Jesse Brandeburg <redacted>
---
 ethtool.8.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ethtool.8.in b/ethtool.8.in
index f83d6d17ae41..6b7761849fca 100644
--- a/ethtool.8.in
+++ b/ethtool.8.in

@@ -244,7 +244,7 @@ ethtool \- query or control network driver and hardware settings
 .RB [\fBeth\-phy\fP]
 .RB [\fBeth\-mac\fP]
 .RB [\fBeth\-ctrl\fP]
-.RN [\fBrmon\fP]
+.RB [\fBrmon\fP]
 .RB ]
 .HP
 .B ethtool \-\-phy\-statistics

-- 
2.31.1