Fix chart generation

create_chart.py

@@ -10,6 +10,7 @@ y = []
 if os.path.exists('bulk_metrics.txt'):
     with open('bulk_metrics.txt') as file:
         for line in file.readlines():
+            print(line.split(" "))
             single_x, single_y = line.split(" ")
             x.append(single_x)
             y.append(single_y)

save_metrics.py

@@ -14,4 +14,4 @@ if os.path.exists("rmse.txt"):
             result = line
 
     with open("bulk_metrics.txt", "a") as file:
-        file.write(build_no + " " + result + "\n")
+        file.write(build_no + " " + result)