patch 8.2.0272: ":helptags ALL" gives error for some directories

Problem:    ":helptags ALL" gives error for directories without write
            permission. (Matěj Cepl)
Solution:   Ignore errors for ":helptags ALL". (Ken Takata, closes #5026,
            closes #5652)
diff --git a/src/version.c b/src/version.c
index ad70c4d..1008eaf 100644
--- a/src/version.c
+++ b/src/version.c
@@ -739,6 +739,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    272,
+/**/
     271,
 /**/
     270,