dump_selections.sh: use a more robust way to get the window name

diff --git a/dump_selections.sh b/dump_selections.sh
index 1f9da7b..9954a46 100755 (executable)
--- a/dump_selections.sh
+++ b/dump_selections.sh
@@ -10,7 +10,7 @@ get_owner() {
     xwininfo -id $OWNER > /dev/null 2>&1;
     if [ $? -eq 0 ];
     then
-      OWNER_NAME=$(xprop -id $OWNER WM_NAME | cut -d ' ' -f 3-)
+      OWNER_NAME=$(xprop -id $OWNER | grep "^WM_NAME" | cut -d ' ' -f 3-)
       if [ -z "$OWNER_NAME" ];
       then
         OWNER_NAME="$OWNER"