pacman: Fix script failure for no updates

When no updates are available, checkupdates fails with exit code 2. Catch this by wrapping the command using || true.

Author: Justus Rossmeier

pacman.sh

@@ -14,7 +14,7 @@ set -o pipefail
 
 if [ -x /usr/bin/checkupdates ]
 then
-    updates=$(/usr/bin/checkupdates | wc -l)
+    updates=$((checkupdates || true) | wc -l)
     cache=0
 else
     if ! updates=$(/usr/bin/pacman -Qu | wc -l)