Fixes cards formatting in text export

app/src/main/java/net/pokeranalytics/android/model/realm/handhistory/HandHistory.kt

@@ -445,7 +445,11 @@ open class HandHistory : RealmObject(), Deletable, RowRepresentable, Filterable,
 			val heroString = context.getString(R.string.hero)
 			playerItems.add("- $heroString")
 		}
-		playerItems.add("[${playerSetup.cards.formatted(context)}]")
+
+		if (playerSetup.cards.isNotEmpty()) {
+			playerItems.add("[${playerSetup.cards.formatted(context)}]")
+		}
+
 		playerSetup.stack?.let { stack ->
 			playerItems.add("- $stack")
 		}