Version Control With Subversion Source

Reported by David Steinbrunner <carbon@...>.

* en/book/ch06.xml: Fix ordering of options on htpasswd command line.

Describe the meaning of "R" in status output.
Based on a patch by Marcel Gosselin <marcel.gosselin@...>,
wording tweaked by me.

* en/book/ch03.xml (status output): Describe meaning of "R".

Tiny spacing tweak.

* en/book/ch03.xml (status output <variablelist>):
Fix the number of columns in example status lines.