[book] Avoid scrollbars in code examples

[wouterj]

Q	A
Doc fix?	yes
New docs?	no
Applies to	all
Fixed tickets	-

There is one thing I'm not sure about and that thing are the wrapped commands:

$ php app/console generate:bundle AcmeFooBundle \
--dir src --format yaml

I don't know if it is commonly known that the \ character can be used for multiline commands

[xabbuh]

for me, I think the example would be more readable if further lines are indented like this:

$ php app/console doctrine:generate:entity \
  --entity="AcmeStoreBundle:Product" \
  --fields="name:string(255) price:float description:text"

[weaverryan]

Hey Wouter!

Very nice! You're absolutely correct with your use of \ in the commands, but as I don't want to confuse any users, I reversed most of these at sha: dcf2c27

Thanks!