Remove line breaks from path and do not allow search option for protocol links.

src/parser/angle_link.rs

@@ -138,16 +138,13 @@ fn parse_protocol_angle_link<'b, 'g, 'r, 's>(
         tuple((parser_with_context!(protocol)(context), tag(":"))),
         |(protocol, _)| LinkType::Protocol(protocol.into()),
     )(input)?;
-    let (remaining, path) = alt((take_until("::"), rest))(remaining)?;
-    let (remaining, search_option) = opt(map(tuple((tag("::"), rest)), |(_, search_option)| {
-        search_option
-    }))(remaining)?;
+    let (remaining, path) = rest(remaining)?;
     Ok((
         remaining,
         PathAngle {
             link_type,
             path: path.into(),
-            search_option: search_option.map(Into::<&str>::into),
+            search_option: None,
             application: None,
         },
     ))