bug report

[xiucz]

Hi,
Thanks for your great job.

I use the tool for about 54549 line tsv file.

[xiucz]

goroutine 34 [running]:
github.com/nsf/termbox-go.PollEvent(0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
	/home/travis/gopath/pkg/mod/github.com/nsf/termbox-go@v0.0.0-20200418040025-38ba6e5628f1/api.go:359 +0x905
main.(*Display).loadAllData.func2(0xc000452060)
	/home/travis/gopath/src/github.com/informationsea/tableview/main.go:337 +0x34
created by main.(*Display).loadAllData
	/home/travis/gopath/src/github.com/informationsea/tableview/main.go:335 +0x106