Issue with environment variable case sensitivity

[grbinho]

In the documentation about environments

This section is not valid for Linux.

The specified environment name is case insensitive. Whether you set the variable to Development or development or DEVELOPMENT the results will be the same.

I ran into this issue couple of days ago. Case matters.

For example , if you are reading a configuration file depending on the environment, file is called
appsetings.production.json and variable is set to "Production". Code that might be using env.EnvironmentName will not read the file on Linux. It will try to read appsettings.Production.json.

[Rick-Anderson]

@grbinho I think it might be the case that "The specified environment name is case insensitive." is true for environment variables but not for file names.

We could make it clear that the file names are case sensitive.

[Rick-Anderson]

master issue #2028

[spboyer]

Closing. #2424 addressed issue.