bug 126601, "Web" should be "web" in Master Password pref panel

patch by Henrik Lynggaard Hansen, working change only, r=brendan, r=kengert

security/manager/locales/en-US/chrome/pippki/pref-masterpass.dtd

@@ -53,7 +53,7 @@
 <!ENTITY  changepassword.accesskey               "C">
 
 <!ENTITY  resetpassword.caption                  "Reset Master Password">
-<!ENTITY  resetpassword.text                     "If you reset your master password, all of your stored Web and e-mail passwords, form data, personal certificates, and private keys will be lost.">
+<!ENTITY  resetpassword.text                     "If you reset your master password, all of your stored web and e-mail passwords, form data, personal certificates, and private keys will be lost.">
 <!ENTITY  resetpassword.button                   "Reset Password">
 <!ENTITY  resetpassword.accesskey                "R">
 <!ENTITY  encryptExpire.label                    "Expire master password after each use.">