[handbook] bsdinstall update Setting the Time Zone section

[carlavilla]

Summary

[handbook] bsdinstall update Setting the Time Zone section

Test Plan

Compile the handbook

[bcr]

Looks good so far, just two more commas to add.

en_US.ISO8859-1/books/handbook/bsdinstall/chapter.xml

2247

s/Otherwise/Otherwise,/

2264

same here as above

[carlavilla]

Fixed!

[bcr]

Approved then! Thank you.