to be consistent with other options
" [pi yes|no]\n"
" [vnet-hdr yes|no]\n"
" [multi-queue yes|no]\n\n"
- " ip-tunnel: mode ipip,gre,sit,isatap,vti,ip6ip6,ipip6,ip6gre,vti6\n"
+ " ip-tunnel: mode ipip|gre|sit|isatap|vti|ip6ip6|ipip6|ip6gre|vti6\n"
" remote <remote endpoint IP>\n"
" [local <local endpoint IP>]\n"
" [dev <parent device (ifname or connection UUID)>]\n\n"
.RS
.TP
.B ip-tunnel:
-.IP "\fImode ipip,gre,sit,isatap,vti,ip6ip6,ipip6,ip6gre,vti6\fP" 42
+.IP "\fImode ipip|gre|sit|isatap|vti|ip6ip6|ipip6|ip6gre|vti6\fP" 42
\(en tunnel mode
.IP "\fIremote <remote endpoint IP>\fP" 42
\(en IPv4 or IPv6 address of the remote tunnel endpoint