Yas:snippets: include '\n' in dbgprintf snippet

Currently, dbgprintf does not include newline character in default
place holders of the snippet. This poses problem when newline character
is not required.

This patch modify place holder to include newline character.

Signed-off-by: Ratheesh S <ratheeshreddy@gmail.com>
Tested-by: Ratheesh S <ratheeshreddy@gmail.com>
Tmux: Change active window color to dirty yellow

Signed-off-by: Ratheesh S <ratheeshreddy@gmail.com>
Tested-by: Ratheesh S <ratheeshreddy@gmail.com>