.hgignore: ignore src/pkg/exp/ebnflint/ebnflint

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/5294060
diff --git a/.hgignore b/.hgignore
index 31f752d..c8150ba 100644
--- a/.hgignore
+++ b/.hgignore
@@ -44,7 +44,7 @@
 src/pkg/exp/norm/maketables
 src/pkg/exp/norm/maketesttables
 src/pkg/exp/norm/normregtest
-src/pkg/exp/ogle/ogle
+src/pkg/exp/ebnflint/ebnflint
 src/pkg/go/build/syslist.go
 src/pkg/os/signal/unix.go
 src/pkg/runtime/*/asm.h