Fix a typo in 07_loop_depth config.json

Author: chameco

examples/07_loop_depth/config/config.json

@@ -18,7 +18,7 @@
       "validation" : [
         {
           "method" : "intComparison",
-          "actual_file" : "STDOUT_1.txt",
+          "actual_file" : "STDOUT.txt",
           "description" : "Loop Depth",
 
           "comparison" : "le",