Update Filer-Server-API.md

Filer-Server-API.md

@@ -17,7 +17,7 @@ You can append to any HTTP API with &pretty=y to see a formatted json output.
         Accept: application/json
 
 # options for POST a file:
-	// set file TTL for Cassandra or Redis filer store.
+	// set file TTL
 	POST /path/to/file?ttl=1d
 	// set file mode when creating or overwriting a file
 	POST /path/to/file?mode=0755