Directly complain when not file are available in custom dired view
Otherwise, a rather confusing error message is displayed about not being able to find a file called "Command output" in the current directory.
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@ -358,7 +358,9 @@ output, separated by \\n, when called with
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(file-symlink-p entry))))
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(split-string (shell-command-to-string command)
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"\n"))))
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(dired (cons "Command output" list-of-files))))
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(if (null list-of-files)
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(message "No files return by command “%s”" command)
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(dired (cons "Command output" list-of-files)))))
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(defun db/system-open (path)
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"Open PATH with default program as defined by the underlying system."
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