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The command line tools and test programs define
struct optionarrays without the required all-zero terminator. On glibc, passing an unrecognized long option can read beyond the array and crash instead of reporting a usage error.Add
{ NULL, 0, NULL, 0 }to each affected array in the test programs andts_uinput. This follows thegetopt_long(3)contract and lets invalid options be handled normally.Tested with tslib 1.24 in ALT Linux: an unknown long option now prints the usage message instead of crashing.