code formatting according contribution guidelines

Signed-off-by: dietWall <[email protected]>

Author: dietWall

src/flb_utils.c

@@ -2075,7 +2075,7 @@ int flb_utils_get_machine_id(char **out_id, size_t *out_size)
     size_t bytes;
     char *uuid;
     int fallback = FLB_FALSE;
-    char *fallback_id = "machine-id";           //should reside in current working directory
+    char *fallback_id_file = "machine-id";           //should reside in current working directory
 
 #ifdef __linux__
     char *dbus_var = "/var/lib/dbus/machine-id";
@@ -2111,9 +2111,9 @@ int flb_utils_get_machine_id(char **out_id, size_t *out_size)
         }
     }
 
-    if (access(fallback_id, F_OK) == 0) 
+    if (access(fallback_id_file, F_OK) == 0) 
     {
-        ret = machine_id_read_and_sanitize(fallback_id, &id, &bytes);
+        ret = machine_id_read_and_sanitize(fallback_id_file, &id, &bytes);
         if(ret == 0)
         {
             if (bytes == 0) {
@@ -2232,11 +2232,11 @@ int flb_utils_get_machine_id(char **out_id, size_t *out_size)
 
     if (ret == 0) {
 
-        int write_result = write_uuid_to_file(fallback_id, uuid);
-        if (write_result != 0)
-        {
-            //writing failed, next uuid generation
-            flb_warn("failed to write machine-id to file %s", fallback_id);
+        ret = write_uuid_to_file(fallback_id_file, uuid);
+        if (ret != 0){
+            //writing failed, next uuid generation will be random again
+            //write a message and return
+            flb_warn("failed to write machine-id to file %s", fallback_id_file);
         }
         *out_id = uuid;
         *out_size = strlen(uuid);