doc: fix manpage warnings

Fixes: #18434
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Daniel Bevenius <daniel.bevenius@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

Author: silverwind

doc/node.1

@@ -37,9 +37,9 @@ node \- Server-side JavaScript runtime
 .RI [ script.js \ |
 .B -e
 .RI \&" script \&"
-.R |
+.RI |
 .B -
-.R ]
+.RI ]
 .B [--]
 .RI [ arguments ]
 .br