Update command line output in Chapter 4.2

The command line output in the examples is from an older version of Git
(1.7.*) and is slightly inconsistent with the latest version.
Update command line output in Chapter 4.5

The command line output in the examples is from an older version of Git
(1.7.*) and is slightly inconsistent with the latest version.
Update command line output in Chapter 4.7

The command line output in the examples is from an older version of Git
(1.7.*) and Gitosis. Both being slightly inconsistent with the latest
versions.
Merge pull request #651 from Matt-Stevens/update-commandline-output-ch4

Update commandline output in Chapter 4