Added nftw() tests.
diff --git a/runtest/syscalls b/runtest/syscalls
index bb81af7..e03c8f4 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -397,6 +397,9 @@
 nanosleep03 nanosleep03
 nanosleep04 nanosleep04
 
+nftw01 nftw01
+nftw6401 nftw6401
+
 nice01 nice01
 nice02 nice02
 nice03 nice03