Added abort() test.
diff --git a/runtest/syscalls b/runtest/syscalls
index d6f4a45..ba9dfaf 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -1,3 +1,5 @@
+abort01 ulimit -c 1024;abort01;ulimit -c 0
+
 accept01 accept01
 
 access01 access01