Running "go tool cover" on package name contains dot with Go 1.11rc1
or latest dev on branch master return an error, but success on Go
1.10.3.
Steps to reproduces
- Create package name with dot ('.').
- Create minimal test file
- Generate test coverage profile,
go test -count=1 -coverprofile=cover.out ./...
- Generate HTML coverage,
go tool cover -html=cover.out -o cover.html
Actual Result
```
22:44 ~/tmp/sandbox/go/src/bug/gotoolcover.go
master ms 1 % go version
go version devel +bf80e3b564 Sat Aug 18 18:23:06 2018 +0000 linux/amd64
22:44 ~/tmp/sandbox/go/src/bug/gotoolcover.go
master ms 0 % go test -count=1 -coverprofile=cover.out ./...
ok bug/gotoolcover.go 0.001s coverage: 0.0% of statements
[no tests to run]
22:44 ~/tmp/sandbox/go/src/bug/gotoolcover.go
master ms 0 % go tool cover -html=cover.out -o cover.html
cover: cannot run go list: exit status 1
stat bug/gotoolcover.go: no such file or directory
```
Expected result
Running on package name without dot,
```
22:45 ~/tmp/sandbox/go/src/bug/gotoolcover-go
master ms 0 % go version
go version devel +bf80e3b564 Sat Aug 18 18:23:06 2018 +0000 linux/amd64
22:45 ~/tmp/sandbox/go/src/bug/gotoolcover-go
master ms 0 % go test -count=1 -coverprofile=cover.out ./...
ok bug/gotoolcover-go 0.001s coverage: 0.0% of statements
[no tests to run]
22:45 ~/tmp/sandbox/go/src/bug/gotoolcover-go
master ms 0 % go tool cover -html=cover.out -o cover.html
```
Should I report this as an issue?
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