minor #16821 [Console] Clarify VALUE_IS_ARRAY usage (guesmiii)

This PR was merged into the 4.4 branch.

Discussion
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[Console] Clarify VALUE_IS_ARRAY usage

VALUE_IS_ARRAY can't be used alone and must be combined with VALUE_REQUIRED or VALUE_OPTIONAL else
we will get InvalidArgumentException('Impossible to have an option mode VALUE_IS_ARRAY if the option does not accept a value.')

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Commits
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e1b7cc2 Clarify VALUE_IS_ARRAY usage

Author: javiereguiluz

console/input.rst

@@ -217,7 +217,7 @@ There are four option variants you can use:
     This option may or may not have a value (e.g. ``--yell`` or
     ``--yell=loud``).
 
-You can combine ``VALUE_IS_ARRAY`` with ``VALUE_REQUIRED`` or
+You need to combine ``VALUE_IS_ARRAY`` with ``VALUE_REQUIRED`` or
 ``VALUE_OPTIONAL`` like this::
 
     $this