shithub: hugo

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Implement `hugo --theme=[Tab][Tab]` bash completion

using the new BashCompSubdirsInDir annotation in spf13/cobra.

--- a/commands/hugo.go

+++ b/commands/hugo.go

@@ -112,6 +112,7 @@

 	// for Bash autocomplete

 	validConfigFilenames := []string{"json", "js", "yaml", "yml", "toml", "tml"}

 	HugoCmd.PersistentFlags().SetAnnotation("config", cobra.BashCompFilenameExt, validConfigFilenames)

+	HugoCmd.PersistentFlags().SetAnnotation("theme", cobra.BashCompSubdirsInDir, []string{"themes"})

 	// This message will be shown to Windows users if Hugo is opened from explorer.exe

 	cobra.MousetrapHelpText = `