Migrated demo code to not import string module. (Patch from Kevin Altis)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_4_BRANCH@18718 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/demo/encode_bitmaps.py

@@ -6,7 +6,7 @@ This is a way to save the startup time when running img2py on lots of
 files...
 """
 
-import sys, string
+import sys
 from wxPython.tools import img2py
 
 
@@ -100,6 +100,6 @@ command_lines = [
 
 
 for line in command_lines:
-    args = string.split(line)
+    args = line.split()
     img2py.main(args)