make usage warning more helpful
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1 changed files with 4 additions and 0 deletions
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@ -106,6 +106,10 @@ func (g *Game) cmdTree(dst io.Writer, argv []string) {
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func (g *Game) cmdQuery(dst io.Writer, argv []string) {
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if len(argv) < 2 || len(argv) > 3 {
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fmt.Fprintln(dst, "Usage: query BEHAVIOUR [ANCESTOR_ID]")
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fmt.Fprint(dst, "Behaviours:")
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for _, b := range Behaviours {
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fmt.Fprintf(dst, " %s", b.Name())
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}
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return
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}
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