Conflicting documentation in manual for flag precedence

[xiegeo]

my urfave/cli version is

2.1.1

Checklist

• Are you running the latest v2 release? The list of releases is here.
• Did you check the manual for your release? The v2 manual is here
• Did you perform a search about this problem? Here's the Github guide about searching.

Describe the bug

Under https://github.com/urfave/cli/blob/master/docs/v2/manual.md#values-from-files

Note that default values set from file (e.g. FilePath) take precedence over default values set from the environment (e.g. EnvVar).

But at https://github.com/urfave/cli/blob/master/docs/v2/manual.md#precedence

1. Environment variable (if specified)
2. Configuration file (if specified)

Expected behavior

Consistency withing documentation and between documentation and code.

[coilysiren]

I don't know which precedence is correct off-hand, and would appreciate if someone could research that and update the manual 👍 I marked this with help wanted for anyone to pick up.

[stale]

This issue or PR has been automatically marked as stale because it has not had recent activity. Please add a comment bumping this if you're still interested in it's resolution! Thanks for your help, please let us know if you need anything else.

[stale]

Closing this as it has become stale.

[dearchap]

Documentation has been corrected to reflect actual behavior

[zc-devs]

Documentation has been corrected to reflect actual behavior

Could you point me to PR or Commit?

Actually not:

Note that default values set from file (e.g. FilePath) take precedence over default values set from the environment (e.g. EnvVar)

The precedence for flag value sources is as follows (highest to lowest):
Environment variable (if specified)
Configuration file (if specified)

Should be reopened.

#1866