patch 9.0.0772: the libvterm code is outdated
Problem: The libvterm code is outdated.
Solution: Include libvterm changes from revision 790 to 801.
diff --git a/src/libvterm/doc/seqs.txt b/src/libvterm/doc/seqs.txt
index 7f21367..02a9fe5 100644
--- a/src/libvterm/doc/seqs.txt
+++ b/src/libvterm/doc/seqs.txt
@@ -132,6 +132,7 @@
1 or 2 = block
3 or 4 = underline
5 or 6 = I-beam to left
+ x CSI > q = XTVERSION, request version string
23x CSI " q = DECSCA, select character attributes
123x CSI r = DECSTBM
x CSI s = DECSLRM