大牛帮忙看下运行测试用例 go test 报错

 ``` /usr/local/devTool/go/bin/go test -v jingoal.com/janus/redis -run ^TestSentinelClient$ panic: runtime error: slice bounds out of range goroutine 1 [running]: panic(0x7e1880, 0xc42001a160) /usr/local/go/src/runtime/panic.go:500 +0x1a1 main.vendoredImportPath(0xc4201ce480, 0xc420397461, 0x19, 0x3, 0x0) /usr/local/go/src/cmd/go/pkg.go:463 +0x66c main.loadImport(0xc420397461, 0x19, 0xc4203731a0, 0x58, 0xc4201ce480, 0xc4203654c0, 0xc420257830, 0x1, 0x1, 0x1, ...) /usr/local/go/src/cmd/go/pkg.go:333 +0x9ea main.(*Package).load(0xc4201ce480, 0xc4203654c0, 0xc420309500, 0x0, 0x0, 0x4) /usr/local/go/src/cmd/go/pkg.go:940 +0x12b6 main.loadImport(0xc4203a8ab1, 0x1f, 0xc4203fa7b0, 0x2a, 0xc42009db00, 0xc4203654c0, 0xc4200fcc80, 0x9, 0x10, 0x1, ...) /usr/local/go/src/cmd/go/pkg.go:374 +0x470 main.(*Package).load(0xc42009db00, 0xc4203654c0, 0xc420204700, 0x0, 0x0, 0x4) /usr/local/go/src/cmd/go/pkg.go:940 +0x12b6 main.loadImport(0xc420123e01, 0x11, 0xc420156330, 0x2e, 0xc420154900, 0xc4203654c0, 0xc4201566c0, 0x1, 0x1, 0x1, ...) ```