normalize-space() example

[djbpitt]

On p. 108, the isolated line of code intended to illustrate the normalize-space() function has a string argument that is already normalized, so the function output would be identical to the input. The paragraph at the top of the page gives an example of a string that would benefit from white-space normalization, but the argument to the illustrative line below that paragraph is the already-normalized version, and not the one with the extra spaces. That isn’t wrong, to be sure, but it doesn’t exemplify how the function can clean up messy whitespace.