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Fix diagnostic output #9

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Also give more information in case of invalid command line arguments.
Fix help message.

If an unknown command line argument is given, at least show which
index is affected.

Signed-off-by: Tobias Stoeckmann <[email protected]>
The maximum spare leases are 255, not 256.
This limit is due to the underlying type used.

Signed-off-by: Tobias Stoeckmann <[email protected]>
@@ -382,7 +382,7 @@ int main(int argc, char** argv) {
break;

default:
printf("ARGC: %i\n", argc);
printf("Unknown argument at index %i\n", optind);
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Can we print the unrecognized argument string instead?

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We had a quick discussion about this in our review and without further investigation into the workings of getopt here, this was the least intrusive patch we could find. We can take another look at this to see if the needed string is readily available.

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argv[optind] should work.

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We were unsure re this, because of folding of short options.

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3 participants