ip: fix man page warnings
Fix usage of ".R" which is not man macro.
diff --git a/man/man8/ip.8 b/man/man8/ip.8
index 49d94f5..36431b6 100644
--- a/man/man8/ip.8
+++ b/man/man8/ip.8
@@ -584,12 +584,10 @@
.ti -8
.IR ALGO " :="
.RB "{ " enc " | " auth " | " comp " } "
-.IR ALGO-NAME " " ALGO-KEY
-.R "|"
+.IR ALGO-NAME " " ALGO-KEY " |"
.br
-.B aead
-.IR ALGO-NAME " " ALGO-KEY " " ALGO-ICV-LEN
-.R "|"
+.B aead
+.IR ALGO-NAME " " ALGO-KEY " " ALGO-ICV-LEN " |"
.br
.B auth-trunc
.IR ALGO-NAME " " ALGO-KEY " " ALGO-TRUNC-LEN