[PATCH v5 0/2] MR11554: cmd: Canonicalize the echo of redirections and separators.

[Lokesh Poovaragan (＠lokeshpoovaragan)]

When echo:ing a command, match native behavior by only showing the last redirection on a given stream, and by adding spaces around redirections and separators.

When a command has several redirections on the same stream, native only echoes the last one.

Pls tell me if anything else needs to be added/removed from the tests, tried to be as minimal as possible wrt space addition/removal

Fixes bug [21227](https://bugs.winehq.org/show_bug.cgi?id=21227)

Signed-off-by: Lokesh Poovaragan [e-mail]

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  v5: cmd: Move redirection deduplication to parse time.
      cmd/tests: Add tests for echo of redirections and separators.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/11554