ref-manual: Updated PACKAGE_CLASSES variable note.

The note about the TAR backend not working was changed to soften
the warning.  It has "limited functionality" rather than
"broken".

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 4 insertions, 3 deletions

diff --git a/documentation/ref-manual/ref-variables.xml b/documentation/ref-manual/ref-variables.xml
index 9fc0a9444b..c6d0bcb6ec 100644
--- a/documentation/ref-manual/ref-variables.xml
+++ b/documentation/ref-manual/ref-variables.xml
@@ -9491,9 +9491,10 @@ recipes-graphics/xorg-font/font-alias_1.0.3.bb:PR = "${INC_PR}.3"
                     </literallayout>
                     <note><title>Warning</title>
                         While it is a legal option, the
-                        <filename>package_tar</filename> class is broken
-                        and is not supported.
-                        It is recommended that you do not use it.
+                        <filename>package_tar</filename> class has limited
+                        functionality due to no support for package
+                        dependencies by that backend.
+                        Therefore, it is recommended that you do not use it.
                     </note>
                     The build system uses only the first argument in the list
                     as the package manager when creating your image or SDK.