FS-8144 readability and code formatting cleanup of mod_opus whiel reviewing…

FS-8144 readability and code formatting cleanup of mod_opus whiel reviewing PLC/FEC bug and document missing options from opus.conf.xml

conf/testing/autoload_configs/opus.conf.xml

 <configuration name="opus.conf">
     <settings>
         <param name="use-vbr" value="1"/>
+        <!--<param name="use-dtx" value="1"/>-->
         <param name="complexity" value="10"/>
+	<!-- Set the initial packet loss percentage 0-100 -->
+        <!--<param name="packet-loss-percent" value="10"/>-->
+	<!-- Support asymmetric sample rates -->
+        <!--<param name="asymmetric-sample-rates" value="1"/>-->
+	<!-- Keep FEC Enabled -->
+        <param name="keep-fec-enabled" value="1"/>
 
         <!--
            maxaveragebitrate: the maximum average codec bitrate (values: 6000 to 510000 in bps) 0 is not considered
@@ -14,6 +21,8 @@
         -->
         <param name="maxaveragebitrate" value="0"/>
         <param name="maxplaybackrate" value="0"/>
+	<!-- Max capture rate, 8000, 12000, 16000, 24000 and 48000 are valid options -->
+        <!--<param name="sprop-maxcapturerate" value="0"/>-->
 
     </settings>
 </configuration>

conf/vanilla/autoload_configs/opus.conf.xml

 <configuration name="opus.conf">
     <settings>
         <param name="use-vbr" value="1"/>
+        <!--<param name="use-dtx" value="1"/>-->
         <param name="complexity" value="10"/>
+	<!-- Set the initial packet loss percentage 0-100 -->
+        <!--<param name="packet-loss-percent" value="10"/>-->
+	<!-- Support asymmetric sample rates -->
+        <!--<param name="asymmetric-sample-rates" value="1"/>-->
+	<!-- Keep FEC Enabled -->
+        <param name="keep-fec-enabled" value="1"/>
 
         <!--
            maxaveragebitrate: the maximum average codec bitrate (values: 6000 to 510000 in bps) 0 is not considered
@@ -14,6 +21,8 @@
         -->
         <param name="maxaveragebitrate" value="0"/>
         <param name="maxplaybackrate" value="0"/>
+	<!-- Max capture rate, 8000, 12000, 16000, 24000 and 48000 are valid options -->
+        <!--<param name="sprop-maxcapturerate" value="0"/>-->
 
     </settings>
 </configuration>