fix new line problem for wait and pkill

src/functions.py

@@ -49,5 +49,5 @@ def displaySentence(sentence):
             print("Error, '{}' not a character".format(char))
 
     #beetween each sentence, system has to wait and then pkill xeyes
-    f_dataStream.write("sleep 5")
-    f_dataStream.write("pkill xeyes")
+    f_dataStream.write("sleep 5\n")
+    f_dataStream.write("pkill xeyes\n")