Fixing misspell errors (#8544)

store/sqlstore/channel_store.go

@@ -750,7 +750,7 @@ func (s SqlChannelStore) SaveMember(member *model.ChannelMember) store.StoreChan
 					if err := transaction.Commit(); err != nil {
 						result.Err = model.NewAppError("SqlChannelStore.SaveMember", "store.sql_channel.save_member.commit_transaction.app_error", nil, err.Error(), http.StatusInternalServerError)
 					}
-					// If sucessfull record members have changed in channel
+					// If successfull record members have changed in channel
 					if mu := <-s.extraUpdated(channel); mu.Err != nil {
 						result.Err = mu.Err
 					}
@@ -1065,7 +1065,7 @@ func (s SqlChannelStore) RemoveMember(channelId string, userId string) store.Sto
 			if err != nil {
 				result.Err = model.NewAppError("SqlChannelStore.RemoveMember", "store.sql_channel.remove_member.app_error", nil, "channel_id="+channelId+", user_id="+userId+", "+err.Error(), http.StatusInternalServerError)
 			} else {
-				// If sucessfull record members have changed in channel
+				// If successfull record members have changed in channel
 				if mu := <-s.extraUpdated(channel); mu.Err != nil {
 					result.Err = mu.Err
 				}

store/storetest/channel_store.go

@@ -1463,11 +1463,11 @@ func testGetMember(t *testing.T, ss store.Store) {
 	store.Must(ss.Channel().SaveMember(m2))
 
 	if result := <-ss.Channel().GetMember(model.NewId(), userId); result.Err == nil {
-		t.Fatal("should've failed to get member for non-existant channel")
+		t.Fatal("should've failed to get member for non-existent channel")
 	}
 
 	if result := <-ss.Channel().GetMember(c1.Id, model.NewId()); result.Err == nil {
-		t.Fatal("should've failed to get member for non-existant user")
+		t.Fatal("should've failed to get member for non-existent user")
 	}
 
 	if result := <-ss.Channel().GetMember(c1.Id, userId); result.Err != nil {