The line wrapping mode can be controlled by Tools->Options->Editor->Formatting->Line Wrap and it's "Off" by default.
Also the non-printable characters visibility can be set by menu View->Show Non-printable Characters.
If there is any serious error encountered the old view hierarchy can still be used by adding the following into netbeans.conf:
Integrated into 'main-golden', will be available in build *201008170001* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress)
User: Miloslav Metelka <email@example.com>
Log: #189557 - Turn on new view hierarchy (supporting line wrapping and non-printable chars showing).
I think this has been fixed some time ago, right?