grub-mkrescue: Recognize -output as an alias of --output.
This helps us to be in line with xorriso -as mkisofs. Suggested by: Thomas Schmitt
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@ -451,6 +451,12 @@ main (int argc, char *argv[])
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int i;
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for (i = 1; i < argc; i++)
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{
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if (strcmp (argv[i], "-output") == 0) {
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argp_argv[argp_argc++] = "--output";
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i++;
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argp_argv[argp_argc++] = argv[i];
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continue;
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}
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switch (args_to_eat (argv[i]))
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{
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case 2:
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