go fmt for stack

stack/stack.go

@@ -41,18 +41,18 @@ func add(slice *Stack, value interface{}) {
 		return
 	}
 
-    for i:=0; i < slice.len; i++ {
+	for i := 0; i < slice.len; i++ {
 		tmpSlice[i] = 0
 	}
 
-    for i:=0; i < slice.len; i++ {
+	for i := 0; i < slice.len; i++ {
 		if i == 0 {
 			tmpSlice[0] = value
 		} else {
-            tmpSlice[i] = slice.st[i - 1]
+			tmpSlice[i] = slice.st[i-1]
 		}
 
-        if i == slice.len - 1 {
+		if i == slice.len-1 {
 			break
 		}
 	}