Fix output of token-create help to use ttl instead of lease

CHANGELOG.md

@@ -17,6 +17,10 @@ BUG FIXES:
  * core: Fix upgrade path for leases created in `generic` prior to 0.3 [GH-673]
  * core: Stale leader entries will now be reaped [GH-679]
 
+MISC:
+
+ * Various documentation fixes and improvements [GH-688]
+
 ## 0.3.1 (October 6, 2015)
 
 SECURITY:

command/token_create.go

@@ -104,7 +104,9 @@ Token Options:
                           is a non-security sensitive value used to help
                           identify created secrets, i.e. prefixes.
 
-  -lease="1h"             Lease to associate with the token. This option enables
+  -lease="1h"             Deprecated; use "-ttl" instead.
+
+  -ttl="1h"               TTL to associate with the token. This option enables
                           the tokens to be renewable.
 
   -metadata="key=value"   Metadata to associate with the token. This shows