[PATCH 6/6] migration-guides/migration-5.1.rst: correct S/UNPACKDIR patterns for file-only recipes

[Alexander Kanavin <alex.kanavin@gmail.com>]

From: Alexander Kanavin <alex@linutronix.de>

It is not necessary to set both; just setting S to UNPACKDIR is enough.

This has already been done across oe-core master, and correct advice
should be given for those who need to adjust recipes during migration.

Signed-off-by: Alexander Kanavin <alex@linutronix.de>
---
 documentation/migration-guides/migration-5.1.rst | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/documentation/migration-guides/migration-5.1.rst b/documentation/migration-guides/migration-5.1.rst
index c9bb38699b4..94b527bdcb3 100644
--- a/documentation/migration-guides/migration-5.1.rst
+++ b/documentation/migration-guides/migration-5.1.rst
@@ -20,8 +20,7 @@ S = ${WORKDIR} no longer supported
 If a recipe has :term:`S` set to be :term:`WORKDIR`, this is no longer
 supported, and an error will be issued. The recipe should be changed to::
 
-    S = "${WORKDIR}/sources"
-    UNPACKDIR = "${S}"
+    S = "${UNPACKDIR}"
 
 Any :term:`WORKDIR` references where files from :term:`SRC_URI` are referenced
 should be changed to :term:`S`. These are commonly in :ref:`ref-tasks-compile`,
@@ -62,8 +61,7 @@ require to add an :term:`S` definition to a recipe that only uses
 ``file://`` :term:`SRC_URI` entries. To be consistent, the following pattern is
 recommended::
 
-    S = "${WORKDIR}/sources"
-    UNPACKDIR = "${S}"
+    S = "${UNPACKDIR}"
 
 Building C files from :term:`UNPACKDIR` without setting :term:`S` to point at
 it does not work as the debug prefix mapping doesn't handle that.
-- 
2.39.5