Fixed some find/replace errors (aundefined => avoid) (#2579)

Author: halzy

crates/web-sys/webidls/enabled/RTCPeerConnection.webidl

@@ -143,7 +143,7 @@ interface RTCPeerConnection : EventTarget  {
 
 partial interface RTCPeerConnection {
 
-  // Dummy Promise<undefined> return values aundefined "WebIDL.WebIDLError: error:
+  // Dummy Promise<undefined> return values avoid "WebIDL.WebIDLError: error:
   // We have overloads with both Promise and non-Promise return types"
 
   Promise<undefined> createOffer (RTCSessionDescriptionCallback successCallback,

crates/web-sys/webidls/enabled/TCPSocket.webidl

@@ -151,7 +151,7 @@ interface TCPSocket : EventTarget {
   /**
    * After send has buffered more than 64k of data, it returns false to
    * indicate that the client should pause before sending more data, to
-   * aundefined accumulating large buffers. This is only advisory, and the client
+   * avoid accumulating large buffers. This is only advisory, and the client
    * is free to ignore it and buffer as much data as desired, but if reducing
    * the size of buffers is important (especially for a streaming application)
    * the "drain" event will be dispatched once the previously-buffered data has

crates/web-sys/webidls/enabled/TextEncoder.webidl

@@ -17,10 +17,10 @@ interface TextEncoder {
   readonly attribute DOMString encoding;
   /*
    * This is spec-wise USVString but marking it as
-   * DOMString to aundefined duplicate work. Since the
+   * DOMString to avoid duplicate work. Since the
    * UTF-16 to UTF-8 converter performs processing
    * that's equivalent to first converting a
-   * DOMString to a USVString, let's aundefined having
+   * DOMString to a USVString, let's avoid having
    * the binding code doing it, too.
    */
   [NewObject]