Remove spaces in histogram display

packet-exchange/src/client.c

@@ -266,15 +266,15 @@ static void print_histograms() {
 
   interval = param->interval / 1000;
 
-  printf("{\"measure_sets\": [{\
-             \"measure_type\": \"packet_send_timestamps\",\
-             \"props_names\": [\"user_space\", \"kernel_space\"],\
-             \"units\": [\"us\", \"us\"],\
-             \"props_type\": \"histogram\",\
-             \"metadata\": {\
-                \"i\": \"%dus\", \"duration\": \"%dh%d\"\
-              },\
-             \"props\": [", interval, duration_hour, duration_minutes);
+  printf("{\"measure_sets\": [{"
+             "\"measure_type\": \"packet_send_timestamps\","
+             "\"props_names\": [\"user_space\", \"kernel_space\"],"
+             "\"units\": [\"us\", \"us\"],"
+             "\"props_type\": \"histogram\","
+             "\"metadata\": {"
+                "\"i\": \"%dus\", \"duration\": \"%dh%d\""
+              "},"
+             "\"props\": [", interval, duration_hour, duration_minutes);
 
   int max_hist_val = 0;
   for (int i = 0; i < 2; i++)

packet-exchange/src/server.c

@@ -237,15 +237,15 @@ static void print_histograms() {
 
   interval = (param->stats.min_interval + param->stats.max_interval) / 2;
 
-  printf("{\"measure_sets\": [{\
-             \"measure_type\": \"packet_recv_timestamps\",\
-             \"props_names\": [\"user_space\", \"kernel_space\"],\
-             \"units\": [\"us\", \"us\"],\
-             \"props_type\": \"histogram\",\
-             \"metadata\": {\
-                \"i\": \"%dus\", \"duration\": \"%dh%d\"\
-              },\
-             \"props\": [", interval, duration_hour, duration_minutes);
+  printf("{\"measure_sets\": [{"
+             "\"measure_type\": \"packet_recv_timestamps\","
+             "\"props_names\": [\"user_space\", \"kernel_space\"],"
+             "\"units\": [\"us\", \"us\"],"
+             "\"props_type\": \"histogram\","
+             "\"metadata\": {"
+                "\"i\": \"%dus\", \"duration\": \"%dh%d\""
+                "},"
+             "\"props\": [", interval, duration_hour, duration_minutes);
 
   int max_hist_val = 0;
   for (int i = 0; i < 2; i++)
@@ -260,15 +260,15 @@ static void print_histograms() {
     printf("%s", (i + 1 < 2 ? "], " : "]"));
   }
 
-  printf(   "]}, {\
-             \"measure_type\": \"packet_jitter\",\
-             \"props_names\": [\"jitter\"],\
-             \"units\": [\"us\"],\
-             \"props_type\": \"histogram\",\
-             \"metadata\": {\
-                \"i\": \"%dus\", \"duration\": \"%dh%d\"\
-              },\
-             \"props\": [[", interval, duration_hour, duration_minutes);
+  printf(   "]}, {"
+             "\"measure_type\": \"packet_jitter\","
+             "\"props_names\": [\"jitter\"],"
+             "\"units\": [\"us\"],"
+             "\"props_type\": \"histogram\","
+             "\"metadata\": {"
+                "\"i\": \"%dus\", \"duration\": \"%dh%d\""
+                "},"
+             "\"props\": [[", interval, duration_hour, duration_minutes);
 
   max_hist_val = 0;
   for (int j = 0; j < MAX_HIST_VAL && histograms[2][j]; j++)