Fixed excessive parentheses in for-in condition

See #44

edge/format.js

@@ -677,6 +677,7 @@ function format(content, options = {}) {
 						inputNode.parent.parent instanceof Stylus.nodes.Feature ||
 						inputNode.parent.parent instanceof Stylus.nodes.Ident ||
 						inputNode.parent.parent instanceof Stylus.nodes.If ||
+						inputNode.parent.parent instanceof Stylus.nodes.Each ||
 						inputNode.parent.parent instanceof Stylus.nodes.Selector ||
 						inputNode.parent.parent instanceof Stylus.nodes.Return ||
 						inputNode.parent.parent instanceof Stylus.nodes.Arguments ||

spec/iteration/input.styl

@@ -1,15 +1,18 @@
 body
-  for num,index in 1 2 3
-    foo num
+	for num,index in 1 2 3
+		foo num
+
+	for $i in $bar.baz
+		foo $i
 
 for key,value in obj
-  {key}:value
+	{key}:value
 
 sum(nums)
-  val = 0
-  val += n for n in nums
-  val += (n+1) for n in nums
+	val = 0
+	val += n for n in nums
+	val += (n+1) for n in nums
 
 get(hash,key)
-  return pair[1] if pair[0] == key for pair in hash
-  return (pair[1]) if pair[0] == key for pair in hash
+	return pair[1] if pair[0] == key for pair in hash
+	return (pair[1]) if pair[0] == key for pair in hash

spec/iteration/output.styl

@@ -2,6 +2,10 @@ body {
 	for num, index in 1 2 3 {
 		foo: num;
 	}
+
+	for $i in $bar.baz {
+		foo: $i;
+	}
 }
 
 for key, value in obj {