bug 131580 r=doron sr=blake a=asa

typo in msgSecurityInfo.properties

mailnews/extensions/smime/resources/locale/en-US/msgSecurityInfo.properties

@@ -56,7 +56,7 @@ SPRevokedCert=The certificate you have specified for signing messages has been r
 
 ## Encryption Power Information string
 EPCanLabel=Message Can Be Encrypted
-EPCanHeader=You have chose to encrypt this message before sending it.
+EPCanHeader=You have chosen to encrypt this message before sending it.
 EPCan=If you have chosen to save copies of your outgoing messages, this message will be encrypted before being saved.
 
 EPCannotLabel=Message Cannot Be Encrypted