Fix Progress spelling error in main/pbx.c.

(closes issue ASTERISK-18857)
Reported by: David M
Patches:
      mainpbx-trivial.patch (License #6326) patch uploaded by David M
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Merged revisions 345219 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 345220 from http://svn.asterisk.org/svn/asterisk/branches/10


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@345221 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/pbx.c

@@ -182,7 +182,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 		</description>
 		<see-also>
 			<ref type="application">Congestion</ref>
-			<ref type="application">Progess</ref>
+			<ref type="application">Progress</ref>
 			<ref type="application">Playtones</ref>
 			<ref type="application">Hangup</ref>
 		</see-also>
@@ -202,7 +202,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 		</description>
 		<see-also>
 			<ref type="application">Busy</ref>
-			<ref type="application">Progess</ref>
+			<ref type="application">Progress</ref>
 			<ref type="application">Playtones</ref>
 			<ref type="application">Hangup</ref>
 		</see-also>