Use fwrite(3) to write out the decoded information, as the b64 decoding stuff

won't NUL terminate the string for us, and so we're liable to pick up trailing
garbage, possibly tons of it.

Pointed out by:	obrien
MFC after:	3 days

usr.bin/uudecode/uudecode.c

@@ -349,7 +349,7 @@ base64_decode(stream)
 	rv = b64_pton(stream, out, (sizeof(out) / sizeof(out[0])));
 	if (rv == -1)
 		errx(1, "b64_pton: error decoding base64 input stream");
-	printf("%s", out);
+	fwrite(out, 1, rv, stdout);
 }
 
 static void