loader: Add comment to duplicate logic

Change-Id: Ib48dd217d18fb05963ae9194d9bc5057eeabee58

loader/loader.c

diff --git a/loader/loader.c b/loader/loader.c
index 956f8b4..2c260fb 100644
--- a/loader/loader.c
+++ b/loader/loader.c
@@ -495,6 +495,7 @@
 
     // Check for and ignore duplicates.
     if (*reg_data && strstr(*reg_data, json_path)) {
+        // Success. The json_path is already in the list.
         return true;
     }