.gitignore in io_splice-4.2.0 vs .gitignore in io_splice-4.3.0

@@ -1,8 +1,9 @@
 *.o
 *.so
 *.log
 *.rbc
+.rbx
 Makefile
 /GIT-VERSION-FILE
 /local.mk
 /NEWS
 /ChangeLog