manuals: fix trailing spaces

Fixing errors reported by "make sphinx-lint"

(From yocto-docs rev: 45b04c281a567e06fd2904166bcc26603e73e684)

Signed-off-by: Michael Opdenacker <michael.opdenacker@bootlin.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>

documentation/migration-guides/migration-4.0.rst

@@ -66,7 +66,7 @@ changes and you need to review them before committing. An example warning
 looks like::
 
     poky/scripts/lib/devtool/upgrade.py needs further work at line 275 since it contains abort
-    
+
 Fetching changes
 ~~~~~~~~~~~~~~~~
 
@@ -109,7 +109,7 @@ License changes
   If they do not, by default a warning will be shown. A
   :oe_git:`convert-spdx-licenses.py </openembedded-core/tree/scripts/contrib/convert-spdx-licenses.py>`
   script can be used to update your recipes.
-  
+
 - :term:`INCOMPATIBLE_LICENSE` should now use `SPDX identifiers <https://spdx.org/licenses/>`__.
   Additionally, wildcarding is now limited to specifically supported values -
   see the :term:`INCOMPATIBLE_LICENSE` documentation for further information.
@@ -119,7 +119,7 @@ License changes
   which can cause signature issues for users. In addition the ``available_licenses()``
   function has been removed from the :ref:`license <ref-classes-license>` class as
   it is no longer needed.
-  
+
 Removed recipes
 ~~~~~~~~~~~~~~~
 
@@ -134,11 +134,11 @@ The following recipes have been removed in this release:
 
 Python changes
 ~~~~~~~~~~~~~~
-     
+
 - ``distutils`` has been deprecated upstream in Python 3.10 and thus the ``distutils*``
   classes have been moved to ``meta-python``. Recipes that inherit the ``distutils*``
   classes should be updated to inherit ``setuptools*`` equivalents instead.
-  
+
 - The Python package build process is now based on `wheels <https://pythonwheels.com/>`__.
   The new Python packaging classes that should be used are
   :ref:`python_flit_core <ref-classes-python_flit_core>`,
@@ -158,7 +158,7 @@ Prelink removed
 Prelink has been dropped by ``glibc`` upstream in 2.36. It already caused issues with
 binary corruption, has a number of open bugs and is of questionable benefit
 without disabling load address randomization and PIE executables.
-    
+
 We disabled prelinking by default in the honister (3.4) release, but left it able
 to be enabled if desired. However, without glibc support it cannot be maintained
 any further, so all of the prelinking functionality has been removed in this release.
@@ -169,7 +169,7 @@ reference(s).
 Reproducible as standard
 ~~~~~~~~~~~~~~~~~~~~~~~~
 
-Reproducibility is now considered as standard functionality, thus the 
+Reproducibility is now considered as standard functionality, thus the
 ``reproducible`` class has been removed and its previous contents merged into the
 :ref:`base <ref-classes-base>` class. If you have references in your configuration to
 ``reproducible`` in :term:`INHERIT`, :term:`USER_CLASSES` etc. then they should be
@@ -211,7 +211,7 @@ and :ref:`bitbake:bitbake-user-manual/bitbake-user-manual-metadata:removal (over
 
 Miscellaneous changes
 ~~~~~~~~~~~~~~~~~~~~~
-  
+
 - ``blacklist.bbclass`` is removed and the functionality moved to the
   :ref:`base <ref-classes-base>` class with a more descriptive
   ``varflag`` variable named :term:`SKIP_RECIPE` which will use the `bb.parse.SkipRecipe()`
@@ -251,7 +251,7 @@ Miscellaneous changes
 - The ``cortexa72-crc`` and ``cortexa72-crc-crypto`` tunes have been removed since
   the crc extension is now enabled by default for cortexa72. Replace any references to
   these with ``cortexa72`` and ``cortexa72-crypto`` respectively.
-  
+
 - The Python development shell (previously known as ``devpyshell``) feature has been
   renamed to ``pydevshell``. To start it you should now run::
 
@@ -260,7 +260,7 @@ Miscellaneous changes
 - The ``packagegroups-core-full-cmdline-libs`` packagegroup is no longer produced, as
   libraries should normally be brought in via dependencies. If you have any references
   to this then remove them.
-  
+
 - The :term:`TOPDIR` variable and the current working directory are no longer modified
   when parsing recipes. Any code depending on the previous behaviour will no longer
   work - change any such code to explicitly use appropriate path variables instead.