Improve documentation of app_record (bug #942)

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@2093 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_record.c

@@ -30,10 +30,13 @@ static char *app = "Record";
 static char *synopsis = "Record to a file";
 
 static char *descrip = 
-"  Record(filename:extension|silence): Records from the  channel into a given\n"
-"filename. If the file exists it will be overwritten. The 'extension'\n"
-"is the extension of the file type  to  be  recorded (wav, gsm, etc).\n"
-"'silence' is the number of seconds of silence to allow before returning.\n"
+"  Record(filename:extension|silence): Records from the channel into a given\n"
+"filename. If the file exists it will be overwritten. \n"
+"- 'extension' is the extension of the file type to be recorded (wav, gsm, etc).\n"
+"- 'silence' is the number of seconds of silence to allow before returning.\n\n"
+"If filename contains '%d', these characters will be replaced with a number\n"
+"incremented by one each time the file is recorded. \n\n"
+"Extensions: g723, g729, gsm, h263, ulaw, alaw, vox, wav, WAV\n\n"
 "Returns -1 when the user hangs up.\n";
 
 STANDARD_LOCAL_USER;