bitbake: doc/bitbake-user-manual-metadata: fix unindent warnings

Fix Sphinx warnings (treated as errors on local builds):

  bitbake-user-manual-metadata.rst:979: WARNING: Bullet list ends without a blank line; unexpected unindent.
  bitbake-user-manual-metadata.rst:982: WARNING: Bullet list ends without a blank line; unexpected unindent.
  bitbake-user-manual-metadata.rst:985: WARNING: Bullet list ends without a blank line; unexpected unindent.

(Bitbake rev: 51d89ce0fc8d188bf10a8bcc6a112466268899ae)

Signed-off-by: Antonin Godard <antonin.godard@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/doc/bitbake-user-manual/bitbake-user-manual-metadata.rst

@@ -976,13 +976,13 @@ go into ``bitbake.conf``, for example::
 ``addfragments`` takes three parameters:
 
 -  path prefix for fragment files inside the layer file tree that bitbake
-uses to construct full paths to the fragment files
+   uses to construct full paths to the fragment files
 
 -  name of variable that holds the list of enabled fragments in an
-active build
+   active build
 
 -  name of variable that contains a list of variable names containing
-fragment-specific metadata (such as descriptions)
+   fragment-specific metadata (such as descriptions)
 
 This allows listing enabled configuration fragments in ``OE_FRAGMENTS``
 variable like this::