rpc: correct typo and reword comment for consistency (#20728)

rpc/http.go

@@ -251,7 +251,7 @@ func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 	// All checks passed, create a codec that reads direct from the request body
-	// untilEOF and writes the response to w and order the server to process a
+	// until EOF, write the response to w, and order the server to process a
 	// single request.
 	ctx := r.Context()
 	ctx = context.WithValue(ctx, "remote", r.RemoteAddr)
@@ -338,7 +338,7 @@ func (h *virtualHostHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		return
 
 	}
-	// Not an ip address, but a hostname. Need to validate
+	// Not an IP address, but a hostname. Need to validate
 	if _, exist := h.vhosts["*"]; exist {
 		h.next.ServeHTTP(w, r)
 		return