Merge branch 'tuoyun' of github.com:OpenIMSDK/Open-IM-Server into tuoyun

cmd/Open-IM-SDK-Core

@@ -1 +1 @@
-Subproject commit 2257ac8ee528fb1e0038f85e34c8770fbe4758e3
+Subproject commit 9d67999cec3e4a9792c33a95e5514a945df54052

pkg/utils/utils.go

@@ -39,6 +39,8 @@ func cleanUpFuncName(funcName string) string {
 	}
 	return funcName[end+1:]
 }
+
+//Get the intersection of two slices
 func Intersect(slice1, slice2 []uint32) []uint32 {
 	m := make(map[uint32]bool)
 	n := make([]uint32, 0)
@@ -53,6 +55,8 @@ func Intersect(slice1, slice2 []uint32) []uint32 {
 	}
 	return n
 }
+
+//Get the diff of two slices
 func Difference(slice1, slice2 []uint32) []uint32 {
 	m := make(map[uint32]bool)
 	n := make([]uint32, 0)