Fix documentation for SayNumber to reflect the fact that language is changed in CHANNEL()

(closes issue ASTERISK-18962)
reported by: Nir Simionovich
........

Merged revisions 349450 from http://svn.asterisk.org/svn/asterisk/branches/1.8
........

Merged revisions 349451 from http://svn.asterisk.org/svn/asterisk/branches/10


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@349452 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/pbx.c

@@ -543,7 +543,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 		<description>
 			<para>This application will play the sounds that correspond to the given <replaceable>digits</replaceable>.
 			Optionally, a <replaceable>gender</replaceable> may be specified. This will use the language that is currently
-			set for the channel. See the LANGUAGE() function for more information on setting the language for the channel.</para>
+			set for the channel. See the CHANNEL() function for more information on setting the language for the channel.</para>
 		</description>
 		<see-also>
 			<ref type="application">SayAlpha</ref>