multi-call hostname example is broken on Windows

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Description

#3015 is verifying the examples more thoroughly but broke on Windows, requiring me to disable the example test.

The original failure:

Testing examples\24a_multicall_busybox.md:8 ... failed
Expected 0, was 2

--- stdout	expected
+++ stdout	actual
@@ -0,0 +1,6 @@
+error: Found argument 'busybox[EXE]' which wasn't expected, or isn't valid in this context
+
+USAGE:
+     [OPTIONS] [SUBCOMMAND]
+
+For more information try --help

stderr:

Version

No response

Minimal reproducible code

See the example

Actual Behaviour

No response

Expected Behaviour

No response

Debug Output

No response