more C standard compat fixes from Dan Fandrich

function                                             old     new   delta
docolon                                              207     204      -3

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

coreutils/od_bloaty.c

@@ -963,7 +963,7 @@ parse_old_offset(const char *s, off_t *offset)
 	static const struct suffix_mult Bb[] = {
 		{ "B", 1024 },
 		{ "b", 512 },
-		{ }
+		{ "", 0 }
 	};
 	char *p;
 	int radix;
@@ -1178,7 +1178,7 @@ int od_main(int argc, char **argv)
 		{ "b", 512 },
 		{ "k", 1024 },
 		{ "m", 1024*1024 },
-		{ }
+		{ "", 0 }
 	};
 	enum {
 		OPT_A = 1 << 0,