strcmp(1): interpret all retvals
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				@ -26,7 +26,7 @@ int main(int argc, char *argv[]) {
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	int i;
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						int i;
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	if (argc < 3) {
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						if (argc < 3) {
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		fprintf(
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							(void)fprintf(
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			stderr,
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								stderr,
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			"Usage: %s string string...\n",
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								"Usage: %s string string...\n",
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			argv[0] == NULL ? program_name : argv[0]
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								argv[0] == NULL ? program_name : argv[0]
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