don't optimize empty strings

diff --git a/Lib/plat-mac/plistlib.py b/Lib/plat-mac/plistlib.py
index 1556d5fca79895d320efefa619375861e85a63c0..5f2c47f36f85024bbd2c71503314b99518121f74 100644 (file)
--- a/Lib/plat-mac/plistlib.py
+++ b/Lib/plat-mac/plistlib.py
@@ -88,7 +88,7 @@ class DumbXMLWriter:
         self.writeln("</%s>" % element)
 
     def simpleElement(self, element, value=None):
-        if value:
+        if value is not None:
             value = _encode(value)
             self.writeln("<%s>%s</%s>" % (element, value, element))
         else: