Fix broken prefix-date step in running hpodder

bin/run-hpodder

@@ -6,7 +6,7 @@ lockfile="$logdir/lock.log"
 dir=`dirname $0`
 
 if [[ ! -d $logdir ]]; then
-    echo "Log directory doesn't exist, create it '$lockfile'"
+    echo "Log directory doesn't exist, create it '$logdir'"
     mkdir -p $logdir
     chmod 777 $logdir
 fi
@@ -18,6 +18,9 @@ fi
 
 touch $lockfile
 hpodder fetch >> $logfile
-$dir/prefix-date ~/podcasts/ >> $logfile
+cd ~/podcasts
+for dir in $(find . -maxdepth 1 -mindepth 1 -type d); do
+    prefix-date $dir
+done
+cd -
 rm $lockfile
-