patch 8.0.0930: terminal buffers are stored in the viminfo file

Problem:    Terminal buffers are stored in the viminfo file while they can't
            be useful.
Solution:   Skip terminal buffers for file marks and buffer list

src/buffer.c

@@ -5658,6 +5658,9 @@ write_viminfo_bufferlist(FILE *fp)
 		|| !buf->b_p_bl
 #ifdef FEAT_QUICKFIX
 		|| bt_quickfix(buf)
+#endif
+#ifdef FEAT_TERMINAL
+		|| bt_terminal(buf)
 #endif
 		|| removable(buf->b_ffname))
 	    continue;