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/* $//'

.local/bin/statusbar/news

@@ -13,4 +13,4 @@ case $BLOCK_BUTTON in
 <b>Note:</b> Only one instance of newsboat (including updates) may be running at a time." ;;
 esac
 
- cat /tmp/newsupdate 2>/dev/null || echo "$(newsboat -x print-unread | awk '{ print "📰 " $1}' | sed s/^0$//g)$(cat ${XDG_CONFIG_HOME:-$HOME/.config}/newsboat/.update 2>/dev/null)"
+ cat /tmp/newsupdate 2>/dev/null || echo "$(newsboat -x print-unread | awk '{ print "📰 " $1}' | sed 's/^📰 0$//g')$(cat ${XDG_CONFIG_HOME:-$HOME/.config}/newsboat/.update 2>/dev/null)"

.local/bin/statusbar/pacpackages

@@ -25,4 +25,4 @@ case $BLOCK_BUTTON in
 - Middle click to show upgradable packages" ;;
 esac
 
-pacman -Qu | grep -cv "\[ignored\]" | sed "s/^/📦/;s/^📦0$//g"
+pacman -Qu | grep -Fcv "[ignored]" | sed "s/^/📦/;s/^📦0$//g"

.local/bin/statusbar/torrent

@@ -14,7 +14,7 @@ transmission-remote -l | grep % |
 				s/L/🔼/g;
 				s/M/🔽/g;
 				s/N/✅/g;
-				s/Z/🌱/g" | awk '{print $2, $1}' | sed -e "s/ $//g" | tr '\n' ' '
+				s/Z/🌱/g" | awk '{print $2, $1}' | tr '\n' ' ' | sed 's/ $//'
 
 case $BLOCK_BUTTON in
     1) $TERMINAL -e tremc ;;