Fix Issue #382 (Minor Windows Installer Issue: Missing descriptions on the "Choose Components" screen).

Just a couple of typo/cut-and-paste errors (and one line with trailing whitespace that was caught by my editor).

NOTE: I am having trouble setting up a build environment (this is my first time using these tools), so **I have not built the code.**  I am uncomfortable submitting untested changes -- even changes as simple as this -- but Daniel has already been very patient, and I do not want to make him wait even longer while I struggle with the toolchain.