patch 7.4.1801

Problem:    Make uninstall leaves file behind.
Solution:   Delete rgb.txt. (Kazunobu Kuriyama)

src/Makefile

@@ -2535,6 +2535,7 @@ uninstall_runtime:
 	-rm -f $(DEST_MAN_RU)/xxd.1 $(DEST_MAN_RU_U)/xxd.1
 	-rm -f $(DEST_HELP)/*.txt $(DEST_HELP)/tags $(DEST_HELP)/*.pl
 	-rm -f $(DEST_HELP)/*.??x $(DEST_HELP)/tags-??
+	-rm -f $(SYS_RGB_FILE)
 	-rm -f $(SYS_MENU_FILE) $(SYS_SYNMENU_FILE) $(SYS_DELMENU_FILE)
 	-rm -f $(SYS_BUGR_FILE) $(EVIM_FILE) $(MSWIN_FILE)
 	-rm -f $(DEST_SCRIPT)/gvimrc_example.vim $(DEST_SCRIPT)/vimrc_example.vim

src/version.c

@@ -753,6 +753,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1801,
 /**/
     1800,
 /**/