dmusic: Constify a variable

[Andrew Talbot]

Changelog:
    dmusic: Constify a variable.

diff -urN a/dlls/dmusic/dmusic_main.c b/dlls/dmusic/dmusic_main.c
--- a/dlls/dmusic/dmusic_main.c	2006-11-09 19:59:54.000000000 +0000
+++ b/dlls/dmusic/dmusic_main.c	2007-04-24 20:12:12.000000000 +0100
@@ -216,7 +216,7 @@
 }
 
 /* DMUS_VERSION struct to string conversion for debug messages */
-const char *debugstr_dmversion (LPDMUS_VERSION version) {
+const char *debugstr_dmversion (const DMUS_VERSION *version) {
 	if (!version) return "'null'";
 	return wine_dbg_sprintf ("\'%i,%i,%i,%i\'",
 		(int)((version->dwVersionMS & 0xFFFF0000) >> 8), (int)(version->dwVersionMS & 0x0000FFFF), 
diff -urN a/dlls/dmusic/dmusic_private.h b/dlls/dmusic/dmusic_private.h
--- a/dlls/dmusic/dmusic_private.h	2006-06-10 12:30:07.000000000 +0100
+++ b/dlls/dmusic/dmusic_private.h	2007-04-24 20:47:04.000000000 +0100
@@ -305,7 +305,7 @@
 /* FOURCC to string conversion for debug messages */
 extern const char *debugstr_fourcc (DWORD fourcc);
 /* DMUS_VERSION struct to string conversion for debug messages */
-extern const char *debugstr_dmversion (LPDMUS_VERSION version);
+extern const char *debugstr_dmversion (const DMUS_VERSION *version);
 /* returns name of given GUID */
 extern const char *debugstr_dmguid (const GUID *id);
 /* returns name of given error code */