pySim-prog: fix typo

Change-Id: I94818e5646ac2beb57052d93b5599f0b877de83b
diff --git a/pySim-prog.py b/pySim-prog.py
index a3235b4..334431e 100755
--- a/pySim-prog.py
+++ b/pySim-prog.py
@@ -760,7 +760,7 @@
 			raise
 		except:
 			print("")
-			print("Card programming failed with an execption:")
+			print("Card programming failed with an exception:")
 			print("---------------------8<---------------------")
 			traceback.print_exc()
 			print("---------------------8<---------------------")