src/become.c: Reintroduce missing newline in usage message.
[become] / debian /
drwxr-xr-x   ..
-rw-r--r-- 423 become-doc.doc-base
-rw-r--r-- 444 become.config
-rwxr-xr-x 1547 become.init
-rw-r--r-- 981 become.postinst
-rw-r--r-- 294 become.postrm
-rw-r--r-- 631 become.templates
-rw-r--r-- 296 changelog
-rw-r--r-- 1452 control
-rw-r--r-- 700 copyright
-rwxr-xr-x 1735 rules