[Documentation] [zos_copy] Update block_size value in zos_copy docs (#2111)

* Update block_size value in zos_copy docs

* Add changelog fragment

* Fix changelog fragment

Author: rexemin

changelogs/fragments/2111-update-zos_copy-block-size-docs.yml

@@ -0,0 +1,4 @@
+trivial:
+   - zos_copy - Updated module documentation to reflect that binary destination data sets
+     get allocated with a block size of 32720, instead of 32760.
+     (https://github.com/ansible-collections/ibm_zos_core/pull/2111)

docs/source/modules/zos_copy.rst

@@ -97,7 +97,7 @@ dest
 
   If ``dest`` is a nonexistent data set, it will be created following the process outlined here and in the ``volume`` option.
 
-  If ``dest`` is a nonexistent data set, the attributes assigned will depend on the type of ``src``. If ``src`` is a USS file, ``dest`` will have a Fixed Block (FB) record format and the remaining attributes will be computed. If *is_binary=true*, ``dest`` will have a Fixed Block (FB) record format with a record length of 80, block size of 32760, and the remaining attributes will be computed. If *executable=true*,``dest`` will have an Undefined (U) record format with a record length of 0, block size of 32760, and the remaining attributes will be computed.
+  If ``dest`` is a nonexistent data set, the attributes assigned will depend on the type of ``src``. If ``src`` is a USS file, ``dest`` will have a Fixed Block (FB) record format and the remaining attributes will be computed. If *is_binary=true*, ``dest`` will have a Fixed Block (FB) record format with a record length of 80, block size of 32720, and the remaining attributes will be computed. If *executable=true*,``dest`` will have an Undefined (U) record format with a record length of 0, block size of 32760, and the remaining attributes will be computed.
 
   If ``src`` is a file and ``dest`` a partitioned data set, ``dest`` does not need to include a member in its value, the module can automatically compute the resulting member name from ``src``.
 

plugins/modules/zos_copy.py

@@ -115,7 +115,7 @@
       - If C(dest) is a nonexistent data set, the attributes assigned will depend on the type of
         C(src). If C(src) is a USS file, C(dest) will have a Fixed Block (FB) record format and the
         remaining attributes will be computed. If I(is_binary=true), C(dest) will have a Fixed Block
-        (FB) record format with a record length of 80, block size of 32760, and the remaining
+        (FB) record format with a record length of 80, block size of 32720, and the remaining
         attributes will be computed. If I(executable=true),C(dest) will have an Undefined (U) record
         format with a record length of 0, block size of 32760, and the remaining attributes will be
         computed.