Tweak changes file and comment dates.

changes/bug11464_023

@@ -1,5 +1,5 @@
   o Major features (security):
-    - Block every authority signing key that was used on an authority
+    - Block authority signing keys that were used on an authorities
       vulnerable to the "heartbleed" bug in openssl (CVE-2014-0160).
       (We don't have any evidence that these keys _were_ compromised;
       we're doing this to be prudent.) Resolves ticket 11464.

src/or/routerlist.c

@@ -460,9 +460,9 @@ authority_cert_dl_failed(const char *id_digest, int status)
 
 static const char *BAD_SIGNING_KEYS[] = {
   "09CD84F751FD6E955E0F8ADB497D5401470D697E", // Expires 2015-01-11 16:26:31
-// dizum still needs to rotate as of 2014-04-04
+// dizum still needs to rotate as of 2014-04-14
 //"0E7E9C07F0969D0468AD741E172A6109DC289F3C", // Expires 2014-08-12 10:18:26
-// dannenberg still needs to rotate as of 2014-04-04
+// dannenberg still needs to rotate as of 2014-04-14
 //"57B85409891D3FB32137F642FDEDF8B7F8CDFDCD", // Expires 2015-02-11 17:19:09
   "87326329007AF781F587AF5B594E540B2B6C7630", // Expires 2014-07-17 11:10:09
   "98CC82342DE8D298CF99D3F1A396475901E0D38E", // Expires 2014-11-10 13:18:56