Exception raised when include file does not exist

[BernieWhite]

Description of the issue

When using the Include keyword an exception is raised if the specified file does not exist. When using the -ErrorAction SilentlyContinue option of Include it is expected that the exception would silently continue but it does not.

To Reproduce

Steps to reproduce the issue:

Document 'IncludeOptional' {
    Include 'NotFile.md' -ErrorAction SilentlyContinue;
}

Expected behaviour

When -ErrorAction SilentlyContinue is specified, the cmdlet should silently continue.

Module in use and version:

• Module: PSDocs
• Version: 0.7.0

Captured output from $PSVersionTable:

Name                           Value
----                           -----
PSVersion                      7.1.1
PSEdition                      Core
GitCommitId                    7.1.1
OS                             Microsoft Windows 10.0.19042
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0