Fix minor statusbar issues (#597)

* Fix: Remove trailing space from battery

* Unify spacing in disk

* Fix news

Don't display news module when there are no news.

* Use grep -F in pacpackages

* Fix torrent

Remove trailing whitespace *after* replacing newlines.

* Quote sed command

.local/bin/statusbar/battery

@@ -24,4 +24,4 @@ do
 
 	printf "%s%s%s%% " "$status" "$warn" "$capacity"
 	unset warn
-done | sed s/\ $/\\n/
+done | sed 's/* $//'