(svn r3077) static, const, bracing, indentation, 0 -> '\0'/NULL, typos in comments, excess empty lines, minor other changes

nothing spectacular, just some stuff, which piled up

music/os2_m.c

@@ -75,4 +75,3 @@ const HalMusicDriver _os2_music_driver = {
 	OS2MidiIsSongPlaying,
 	OS2MidiSetVolume,
 };
-

music/qtmidi.c

@@ -375,5 +375,3 @@ const HalMusicDriver _qtime_music_driver = {
 	SongIsPlaying,
 	SetVolume,
 };
-
-

music/qtmidi.h

@@ -12,4 +12,3 @@
 extern const HalMusicDriver _qtime_music_driver;
 
 #endif /* !MUSIC_MACOSX_QUICKTIME_H */
-

music/win32_m.c

@@ -44,7 +44,8 @@ static void Win32MidiSetVolume(byte vol)
 	SetEvent(_midi.wait_obj);
 }
 
-static MCIERROR CDECL MidiSendCommand(const char *cmd, ...) {
+static MCIERROR CDECL MidiSendCommand(const char* cmd, ...)
+{
 	va_list va;
 	char buf[512];