engine: platform: posix: replace va function calls.

engine/platform/posix/lib_posix.c

@@ -82,6 +82,7 @@ void *COM_LoadLibrary( const char *dllname, int build_ordinals_table, qboolean d
 {
 	dll_user_t *hInst = NULL;
 	void *pHandle = NULL;
+	char buf[MAX_VA_STRING];
 
 	COM_ResetLibraryError();
 
@@ -110,7 +111,8 @@ void *COM_LoadLibrary( const char *dllname, int build_ordinals_table, qboolean d
 			if( pHandle )
 				return pHandle;
 
-			COM_PushLibraryError( va( "Failed to find library %s", dllname ));
+			Q_snprintf( buf, sizeof( buf ), "Failed to find library %s", dllname );
+			COM_PushLibraryError( buf );
 			COM_PushLibraryError( dlerror() );
 			return NULL;
 		}
@@ -118,7 +120,8 @@ void *COM_LoadLibrary( const char *dllname, int build_ordinals_table, qboolean d
 
 	if( hInst->custom_loader )
 	{
-		COM_PushLibraryError( va( "Custom library loader is not available. Extract library %s and fix gameinfo.txt!", hInst->fullPath ));
+		Q_snprintf( buf, sizeof( buf ), "Custom library loader is not available. Extract library %s and fix gameinfo.txt!", hInst->fullPath );
+		COM_PushLibraryError( buf );
 		Mem_Free( hInst );
 		return NULL;
 	}
@@ -128,14 +131,16 @@ void *COM_LoadLibrary( const char *dllname, int build_ordinals_table, qboolean d
 	{
 		if( hInst->encrypted )
 		{
-			COM_PushLibraryError( va( "Library %s is encrypted. Cannot load", hInst->shortPath ) );
+			Q_snprintf( buf, sizeof( buf ), "Library %s is encrypted. Cannot load", hInst->shortPath );
+			COM_PushLibraryError( buf );
 			Mem_Free( hInst );
 			return NULL;
 		}
 
 		if( !( hInst->hInstance = Loader_LoadLibrary( hInst->fullPath ) ) )
 		{
-			COM_PushLibraryError( va( "Failed to load DLL with DLL loader: %s", hInst->shortPath ) );
+			Q_snprintf( buf, sizeof( buf ), "Failed to load DLL with DLL loader: %s", hInst->shortPath );
+			COM_PushLibraryError( buf );
 			Mem_Free( hInst );
 			return NULL;
 		}