Fix sense of "I have" vs "I have not" in zh_CH translation.

Thanks to Guo Yixuan <culu.gyx@gmail.com> for the report and patch.

ChangeLog

+2013-11-03
+
+	* po/zh_CN.po: Fix sense of "I have" vs "I have not".  Thanks to
+	Guo Yixuan <culu.gyx@gmail.com> for the report and patch.
+
 2013-10-23
 
 	* po/fr.po: Update to fr translation from Solveig

po/zh_CN.po

@@ -239,12 +239,12 @@ msgstr "OTR"
 #. * the fourth message will follow it.
 #: ../gtk-dialog.c:1351
 msgid "I have not"
-msgstr "我已经"
+msgstr "我还没有"
 
 #. 2nd message
 #: ../gtk-dialog.c:1353
 msgid "I have"
-msgstr "我还没有"
+msgstr "我已经"
 
 #. 3rd message
 #: ../gtk-dialog.c:1356