[Console] fixed output escaping when using the process helper
bug #11610 [Console] fixed output escaping when using the process helper (fabpot)

This PR was merged into the 2.6-dev branch.

Discussion
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[Console] fixed output escaping when using the process helper

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | n/a
| License       | MIT
| Doc PR        | n/a

When displaying the output of a process run, we must escape the `<` to avoid any formatting.

Commits
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bf7a90e [Console] fixed output escaping when using the process helper