Use memset instead of bzero. (#131)

src/ldeether.c

@@ -18,6 +18,7 @@ int main(int argc, char *argv[]) { return (0); }
 /* THERE -IS- AN ETHERNET */
 
 #include <stdio.h>
+#include <string.h>
 
 #ifdef USE_DLPI
 #include <sys/stream.h>
@@ -168,7 +169,7 @@ int main(int argc, char *argv[]) {
         perror("Couldn't GIFCONF socket; Net is off");
 #else  /* OS4 */
 
-      bzero(ifbuf, sizeof(ifbuf));
+      memset(ifbuf, 0, sizeof(ifbuf));
       {
         /* we have to get the interface name from another socket, since
         /dev/nit doesn't know anything until it gets bound, and we