patch 8.0.1822: make uninstall does not remove colors/tools

Problem:    Make uninstall does not remove colors/tools.
Solution:   Add a line to delete the tools directory. (Kazunobu Kuriyama)
diff --git a/src/version.c b/src/version.c
index 38d26f1..981d650 100644
--- a/src/version.c
+++ b/src/version.c
@@ -762,6 +762,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1822,
+/**/
     1821,
 /**/
     1820,