gofmt:tldr:d9aed

The command gofmt -e ${source-go} is used to format Go source code according to the official Go formatting guidelines. Let's break it down:

• gofmt is a command-line tool provided by the Go programming language. It takes a Go source file as input and formats it according to the Go code formatting rules.
• -e is a flag that enables additional error messages if there are any issues encountered during the formatting process. It helps in identifying any syntax errors or other problems in the code.
• ${source-go} is a placeholder for the name of the source file (or files) that you want to format. Typically, you would replace it with the actual name of your Go source file, including the file extension.

So, when you run this command, it will format the specified Go source file(s) and potentially display error messages if there are any problems encountered. The original file(s) will be modified according to the formatting rules.