Fix texinfo docstring syntax for all audio functions * libinterp/dldfcn/audiodevinfo.cc, libinterp/dldfcn/audioinfo.cc, libinterp/dldfcn/audioread.cc, libinterp/dldfcn/audiowrite.cc, scripts/audio/@audioplayer/__get_properties__.m, scripts/audio/@audioplayer/audioplayer.m, scripts/audio/@audioplayer/display.m, scripts/audio/@audioplayer/get.m, scripts/audio/@audioplayer/isplaying.m, scripts/audio/@audioplayer/pause.m, scripts/audio/@audioplayer/play.m, scripts/audio/@audioplayer/playblocking.m, scripts/audio/@audioplayer/resume.m, scripts/audio/@audioplayer/set.m, scripts/audio/@audioplayer/stop.m, scripts/audio/@audiorecorder/audiorecorder.m, scripts/audio/@audiorecorder/display.m, scripts/audio/@audiorecorder/get.m, scripts/audio/@audiorecorder/getaudiodata.m, scripts/audio/@audiorecorder/getplayer.m, scripts/audio/@audiorecorder/isrecording.m, scripts/audio/@audiorecorder/pause.m, scripts/audio/@audiorecorder/play.m, scripts/audio/@audiorecorder/record.m, scripts/audio/@audiorecorder/recordblocking.m, scripts/audio/@audiorecorder/resume.m, scripts/audio/@audiorecorder/set.m, scripts/audio/@audiorecorder/stop.m: Fix texinfo docstring formatting, wrap long lines, and use consistent lowercase variable names.

--- a/libinterp/dldfcn/audioinfo.cc	Thu Oct 03 08:33:46 2013 -0400
+++ b/libinterp/dldfcn/audioinfo.cc	Thu Oct 03 09:50:01 2013 -0400
@@ -31,11 +31,9 @@
 #endif
 
 DEFUN_DLD (audioinfo, args, ,
-"-*- texinfo -*-\n\
-@deftypefn{Loadable Function} info = audioinfo (@var{filename})\n\
-\n\
-Return information about an audio file specified by @var{filename}.\
-\n\
+  "-*- texinfo -*-\n\
+@deftypefn {Loadable Function} {@var{info} =} audioinfo (@var{filename})\n\
+Return information about an audio file specified by @var{filename}.\n\
 @end deftypefn")
 {
   octave_scalar_map retval;