time: Time.Format does not provide space padding for numbers other than days #22802
Description
Please answer these questions before submitting your issue. Thanks!
What version of Go are you using (go version)?
go version go1.9.2 darwin/amd64
Does this issue reproduce with the latest release?
I'm not sure I'm running the latest release of Go, but I just ran brew upgrade go on my macOS laptop and it says go 1.9.2 already installed.
What operating system and processor architecture are you using (go env)?
GOARCH="amd64"
GOOS="darwin"
What did you do?
I was trying to make a library that gives programmers who wanted to use Python-like strftime method on time.Time a nice Strftime function. While writing test code to test if paddings are working, I found that there is no space(literal ) padding for 'month' and 'hour' but only 'day' haves it.
To explain what happens, here's Go playground's link: https://play.golang.org/p/cAgWgVD5Tu
As you can see underscore(_) layout string doesn't work for month, hour, minute and second.
What did you expect to see?
In the above playground, I expected 9 4 for month and day.
What did you see instead?
But I've got _9 4 instead. Same for month, hour, minute and second.
I would like to patch the time package and I'd like to know whether this issue has already issued or not. Thanks.