Adds entry in UPDATES.txt for removal of formats/format_sln16.c. Fixes typo in CHANGES as well.

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@327168 65c4cc65-6c06-0410-ace0-fbb531ad65f3

CHANGES

@@ -79,7 +79,7 @@ CODECS
    custom CELT formats in codecs.conf.
  * Ability to read raw signed linear files with sample rates
    ranging from 8khz - 192khz.  The new file extensions introduced
-   are .sln12, .sln24, .slin32, .slin44, .slin48, .slin96, .slin192.
+   are .sln12, .sln24, .sln32, .sln44, .sln48, .sln96, .sln192.
 
 ConfBridge
 --------------------------

UPGRADE.txt

@@ -29,6 +29,12 @@ ConfBridge
  - ConfBridge's dialplan arguments have changed and are not
    backwards compatible.
 
+File Interpreters
+ - The format interpreter formats/format_sln16.c for the file extension
+   '.sln16' has been removed. The '.sln16' file interpreter now exists
+   in the formats/format_sln.c module along with new support for sln12,
+   sln24, sln32, sln44, sln48, sln96, and sln192 file extensions.
+
 HTTP:
  - A bindaddr must be specified in order for the HTTP server
    to run. Previous versions would default to 0.0.0.0 if no