input: Avoid warnings on all-zero static struct entries.

src/input/binary.c

@@ -138,7 +138,7 @@ static int cleanup(struct sr_input *in)
 static struct sr_option options[] = {
 	{ "numchannels", "Number of channels", "Number of channels", NULL, NULL },
 	{ "samplerate", "Sample rate", "Sample rate", NULL, NULL },
-	{ 0 }
+	ALL_ZERO
 };
 
 static struct sr_option *get_options(void)

src/input/chronovu_la8.c

@@ -150,7 +150,7 @@ static int cleanup(struct sr_input *in)
 static struct sr_option options[] = {
 	{ "numchannels", "Number of channels", "Number of channels", NULL, NULL },
 	{ "samplerate", "Sample rate", "Sample rate", NULL, NULL },
-	{ 0 }
+	ALL_ZERO
 };
 
 static struct sr_option *get_options(void)

src/input/csv.c

@@ -767,7 +767,7 @@ static struct sr_option options[] = {
 	{ "first-channel", "First channel", "Column number of first channel", NULL, NULL },
 	{ "header", "Header", "Treat first line as header with channel names", NULL, NULL },
 	{ "startline", "Start line", "Line number at which to start processing samples", NULL, NULL },
-	{ 0 }
+	ALL_ZERO
 };
 
 static struct sr_option *get_options(void)

src/input/vcd.c

@@ -524,7 +524,7 @@ static struct sr_option options[] = {
 	{ "skip", "Skip", "Skip until timestamp", NULL, NULL },
 	{ "downsample", "Downsample", "Divide samplerate by factor", NULL, NULL },
 	{ "compress", "Compress", "Compress idle periods longer than this value", NULL, NULL },
-	{ 0 }
+	ALL_ZERO
 };
 
 static struct sr_option *get_options(void)