tm Change "sercmd" to "kamcmd"

modules/tm/README

@@ -1317,7 +1317,7 @@ modparam("tm", "via1_matching", 1)
    Default value is 0 (off).
 
    Can be set at runtime, e.g.:
-        $ sercmd cfg.set_now_int tm callid_matching 0
+        $ kamcmd cfg.set_now_int tm callid_matching 0
 
    Example 1.33. Set callid_matching parameter
 ...

modules/tm/doc/params.xml

@@ -1003,7 +1003,7 @@ modparam("tm", "via1_matching", 1)
 	<para>
 		Can be set at runtime, e.g.:
 		<programlisting>
-	$ sercmd cfg.set_now_int tm callid_matching 0
+	$ &sercmd; cfg.set_now_int tm callid_matching 0
 		</programlisting>
 	</para>
 	<example>