conversion of tasks: add removing of -N

convert_qdefx.sh

@@ -15,7 +15,10 @@ for i in "$@"; do
     # first regex replaces definition inside the ebmedded old QDEF format,
     # which is not really used, but should be kept in sync
     # the second one prelaces the proper definition in the new format
+    # the third one removes unnecessary "-N" from task prefix
     sed -i -e 's/^:\(e[^=]*\)="f:/:\1="d:?/' \
            -e 's|\(<check><type>external</type><service>\)f\(</service><correct><!\[CDATA\[\)|\1d\2?|' \
         $i
+
+    sed -i -E 's/([A-Z]{3}-[A-Z]{3})-N/\1/g' $i
 done