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testdisplay: Allow getopt to print error messages

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By not assigning opterr, getopt will print its own error message that
includes information about whether an option is unknown or just requires
an additional argument.

Signed-off-by: Thomas Wood <thomas.wood@intel.com>
This commit is contained in:
Thomas Wood 2013-10-10 12:23:19 +01:00 committed by Damien Lespiau
parent ffdece38e2
commit ce5becbb61
1 changed files with 0 additions and 2 deletions
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2
tests/testdisplay.c
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@ -723,7 +723,6 @@ int main(int argc, char **argv)
enter_exec_path( argv ); enter_exec_path( argv );
opterr = 0;
while ((c = getopt(argc, argv, optstr)) != -1) { while ((c = getopt(argc, argv, optstr)) != -1) {
switch (c) { switch (c) {
case '3': case '3':
@ -771,7 +770,6 @@ int main(int argc, char **argv)
sscanf(optarg, "%d,%d", &specified_disp_id, &specified_mode_num); sscanf(optarg, "%d,%d", &specified_disp_id, &specified_mode_num);
break; break;
default: default:
fprintf(stderr, "unknown option %c\n", c);
/* fall through */ /* fall through */
case 'h': case 'h':
usage(argv[0]); usage(argv[0]);