Avoid double indenting in console wrapping

Summary:
D2016 changed the behavior of phutil_console_wrap().
The new behavior is better so I am fixing callsites instead of the function.

Test Plan:

arc lint

Verify that the "Apply this patch" prompt is indented only 4 spaces.

Reviewers: epriestley

Reviewed By: epriestley

CC: aran, epriestley

Differential Revision: https://secure.phabricator.com/D2046