lib/hexdump.c:47: warning: No description found for return value of 'hex_to_bin'
lib/hexdump.c:64: warning: No description found for return value of 'hex2bin'
lib/hexdump.c:88: warning: No description found for return value of 'bin2hex'
lib/hexdump.c:47: warning: No description found for return value of 'hex_to_bin'
lib/hexdump.c:64: warning: No description found for return value of 'hex2bin'
lib/hexdump.c:88: warning: No description found for return value of 'bin2hex'