(bug 34938) <title> empty on Sanskrit Wikipedia

(bug 34938) <title> empty on Sanskrit Wikipedia

Second time this issue happen. The symptom is that some pages on
sa.wikipedia.org have an empty HTML <title>.

Originally thought it was an issue with the l10n update script on WMF
cluster, running the updater apparently fixed the issue one time.

This time it seems the issue is caused by 'pagetitle' being empty in
MessagesSa.php. See commit a613ec85f81b703dd1058eaf1bdc512b81e3c1a3
made by translatewiki script on March 14th 2012.

Change-Id: Ibfd9b9e566431ca115d77c97c1359373e0c2fb5a