fix for http://bugzilla.mozilla.org/show_bug.cgi?id=83174

typo
r=ssaux,sr=blake,a=blizzard for 0.9.2
contributed by stephen walker

security/manager/pki/resources/locale/en-US/certManager.dtd

@@ -33,7 +33,7 @@
 <!ENTITY certmgr.mine "You have certificates from these organizations that identify you:">
 <!ENTITY certmgr.others "You have certificates on file that identify these people:">
 <!ENTITY certmgr.websites "You have certificates on file that identify these web sites:">
-<!ENTITY certmgr.cas "You have certificates on file that identify these Certificate Authorities:">
+<!ENTITY certmgr.cas "You have certificates on file that identify these certificate authorities:">
 
 <!ENTITY certmgr.detail.general_tab.title "General">
 <!ENTITY certmgr.detail.prettyprint_tab.title "Details">