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@@ -198,7 +198,8 @@ int main(int argc, char **argv)
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num_outputs++;
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num_outputs++;
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}
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}
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if (!num_outputs && !multires)
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if (!num_outputs && !multires)
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- G_fatal_error(_("At least one output is required"));
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+ G_fatal_error(_("At least one output is required, e.g. %s"),
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+ opt_output[o_forms]->key);
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meters = (flag_units->answer != 0);
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meters = (flag_units->answer != 0);
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extended = (flag_extended->answer != 0);
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extended = (flag_extended->answer != 0);
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