use --require instead of --compilers in mocha.opts (#39)

Leko · azu · commit f22e2ad8ee8e · 2018-07-21T23:23:07.000+09:00
Fixed #36
diff --git a/test/mocha.opts b/test/mocha.opts
@@ -1 +1 @@
---compilers js:babel-register
+--require babel-register
