Open zipsafe file in text mode.

--HG--
branch : distribute
extra : rebase_source : 3215e6d146816dc96a2cb23b6a6fb16fd63e1648

setuptools/command/bdist_egg.py

@@ -401,7 +401,7 @@ def write_safety_flag(egg_dir, safe):
             if safe is None or bool(safe)<>flag:
                 os.unlink(fn)
         elif safe is not None and bool(safe)==flag:
-            f=open(fn,'wb'); f.write('\n'); f.close()
+            f=open(fn,'wt'); f.write('\n'); f.close()
 
 safety_flags = {
     True: 'zip-safe',