Fixed forgotten call of va_end() in mc_log().

Signed-off-by: Andrew Borodin <aborodin@vmail.ru>

src/logging.c

@@ -71,5 +71,6 @@ mc_log(const char *fmt, ...)
 			(void)fclose(f);
 		}
 		g_free(logfilename);
+		va_end(args);
 	}
 }