patch 7.4.1801
Problem:    Make uninstall leaves file behind.
Solution:   Delete rgb.txt. (Kazunobu Kuriyama)
diff --git a/src/version.c b/src/version.c
index e49c125..36ea2e8 100644
--- a/src/version.c
+++ b/src/version.c
@@ -754,6 +754,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1801,
+/**/
     1800,
 /**/
     1799,