readline: skip escaping characters again

This is a minor performance improvement for readline. It skips to
escape individual characters again after escaping them before.

Signed-off-by: Ruben Bridgewater <ruben@bridgewater.de>

PR-URL: #41005
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>

lib/internal/readline/interface.js

@@ -862,7 +862,7 @@ class Interface extends InterfaceConstructor {
         offset += this.tabSize - (offset % this.tabSize);
         continue;
       }
-      const width = getStringWidth(char);
+      const width = getStringWidth(char, false /* stripVTControlCharacters */);
       if (width === 0 || width === 1) {
         offset += width;
       } else {