Fix typo from patch for bug 346795, patch by beltzner

toolkit/locales/en-US/chrome/mozapps/update/updates.dtd

@@ -64,7 +64,7 @@
 <!ENTITY  finishedBackground.text         "&brandShortName; has downloaded and verified an important update. 
                                            Click the link below for more details.">
 <!ENTITY  finishedBackground.name         "Update:">
-<!ENTITY  finishedBackground.detail1      "Click Restart &brandShortName; Now to install the update now. 
+<!ENTITY  finishedBackground.detail1      "Click Restart &brandShortName; Now to install the update now.">
 <!ENTITY  finishedBackground.detail2      "Click Later to close this dialog and continue browsing. &brandShortName;
                                            will install the update the next time it starts.">