Merge remote-tracking branch 'origin/pr/624'

* origin/pr/624:
  Fall back to the absolute path for fstrim if needed

Author: marmarek

qubes-rpc/post-install.d/95-fstrim.sh

@@ -6,5 +6,11 @@
 if [ -f /run/qubes/persistent-full ]
 then
     echo "Trimming qube storage. This may take some time..."
-    fstrim -av
+    if command -v fstrim >/dev/null; then
+      fstrim -av
+    else
+      # /usr/sbin might not be in $PATH, fall back to the absolute path
+      # if necessary
+      /usr/sbin/fstrim -av
+    fi
 fi