Add missing close() and use EXIT_FAILURE macro in cat_nonblock.c #284
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In cat_nonblock.c, function call of close() is missing, which could lead to resource leak. Besides, using EXIT_FAILURE macro defined in stdlib.h provides better readability.
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In
cat_nonblock.c, function call ofclose()is missing, which could lead to resource leak. Besides, usingEXIT_FAILUREmacro defined in stdlib.h provides better readability.