Add .hgignore file
diff --git a/.hgignore b/.hgignore
new file mode 100644
index 0000000..0e11839
--- /dev/null
+++ b/.hgignore
@@ -0,0 +1,7 @@
+syntax: glob
+.config*
+gen_config.h
+kconfig/mconf
+toys/help.h
+toybox
+toybox_unstripped