mesa: Update MESA_INFO to eliminate error

If a user set MESA_INFO and the OpenGL application uses a
3.0 or later context then the MESA_INFO debug output will have
an error when it queries for extensions using the deprecated
enum GL_EXTENSIONS. Passing context argument allows code
to return extension list directly regardless of profile.
Commit title updated as recommended by Kenneth Graunke.

Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

src/mesa/main/context.c

@@ -1535,7 +1535,7 @@ _mesa_make_current( struct gl_context *newCtx,
           * information.
           */
 	 if (_mesa_getenv("MESA_INFO")) {
-	    _mesa_print_info();
+	    _mesa_print_info(newCtx);
 	 }
 
 	 newCtx->FirstTimeCurrent = GL_FALSE;