--- a/getpwnam_error.c
+++ b/getpwnam_error.c
@@ -35,6 +35,13 @@
 ==7531==         suppressed: 0 bytes in 0 blocks.
 */
 
+/*
+ * LD_PRELOAD=/lib/libnss_compat.so.2 valgrind --leak-check=full \
+ * ./getpwnam_error
+ * fixes it - Many thanks to telexicon for reporting this...
+ *
+ */
+
 int main (int argc, char **argv)
 {
     struct passwd *pwd;