LibWeb/Fetch: Use tuple syntax for headers in spec comments

This is an editorial change in the Fetch spec.

See: b482186

Userland/Libraries/LibWeb/Fetch/Headers.cpp

@@ -154,7 +154,7 @@ WebIDL::ExceptionOr<void> Headers::set(DeprecatedString const& name_string, Depr
     if (m_guard == Guard::Request && Infrastructure::is_forbidden_header_name(name))
         return {};
 
-    // 5. Otherwise, if this’s guard is "request-no-cors" and name/value is not a no-CORS-safelisted request-header, return.
+    // 5. Otherwise, if this’s guard is "request-no-cors" and (name, value) is not a no-CORS-safelisted request-header, return.
     if (m_guard == Guard::RequestNoCORS && !Infrastructure::is_no_cors_safelisted_request_header(header))
         return {};
 
@@ -253,7 +253,7 @@ WebIDL::ExceptionOr<void> Headers::append(Infrastructure::Header header)
             .value = temporary_value.release_value(),
         };
 
-        // 4. If name/temporaryValue is not a no-CORS-safelisted request-header, then return.
+        // 4. If (name, temporaryValue) is not a no-CORS-safelisted request-header, then return.
         if (!Infrastructure::is_no_cors_safelisted_request_header(temporary_header))
             return {};
     }

Userland/Libraries/LibWeb/Fetch/Infrastructure/HTTP/Headers.cpp

@@ -569,13 +569,13 @@ bool is_no_cors_safelisted_request_header_name(ReadonlyBytes header_name)
 // https://fetch.spec.whatwg.org/#no-cors-safelisted-request-header
 bool is_no_cors_safelisted_request_header(Header const& header)
 {
-    // To determine whether a header header is a no-CORS-safelisted request-header, run these steps:
+    // To determine whether a header (name, value) is a no-CORS-safelisted request-header, run these steps:
 
-    // 1. If header’s name is not a no-CORS-safelisted request-header name, then return false.
+    // 1. If name is not a no-CORS-safelisted request-header name, then return false.
     if (!is_no_cors_safelisted_request_header_name(header.name))
         return false;
 
-    // 2. Return whether header is a CORS-safelisted request-header.
+    // 2. Return whether (name, value) is a CORS-safelisted request-header.
     return is_cors_safelisted_request_header(header);
 }