fixed typo

Doc/whatsnew/3.2.rst

@@ -89,7 +89,7 @@ New, Improved, and Deprecated Modules
 
   * ignore_dangling_symlinks: when symlinks=false (meaning that the function
     copy the file pointed by the symlink, not the symlink itself)
-    this option will silent the error thrown if the file doesn't exists.
+    this option will silence the error thrown if the file doesn't exists.
 
   * copy_function: a callable that will be used to copy files.
     :func:`shutil.copy2` is used by default.