fix(bin/_mocha): Make --watch-extensions default to 'js'

plroebuck · boneskull · commit 087dad1ff30f · 2018-05-18T15:39:31.000-07:00
The change in c580294 to `--watch-extensions` failed to set a default value. This change specifies that default value. Fixes #3336
diff --git a/bin/_mocha b/bin/_mocha
@@ -247,7 +247,7 @@ program
     '--watch-extensions <ext>,...',
     'additional extensions to monitor with --watch',
     list,
-    []
+    ['js']
   )
   .option('--delay', 'wait for async suite definition')
   .option('--allow-uncaught', 'enable uncaught errors to propagate')

Original file line number	Diff line number	Diff line change
`@@ -247,7 +247,7 @@ program`
`247`	`247`	`'--watch-extensions <ext>,...',`
`248`	`248`	`'additional extensions to monitor with --watch',`
`249`	`249`	`list,`
`250`		`- []`
	`250`	`+ ['js']`
`251`	`251`	`)`
`252`	`252`	`.option('--delay', 'wait for async suite definition')`
`253`	`253`	`.option('--allow-uncaught', 'enable uncaught errors to propagate')`