manuals: fix suspicious newlines

- That could originate from documentation migration issues
- Checked that the corresponding links still exist

(From yocto-docs rev: 38bae8f6067bc12f3617ed38587737d22dd7b32c)

Signed-off-by: Michael Opdenacker <michael.opdenacker@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

documentation/sdk-manual/working-projects.rst

@@ -104,10 +104,7 @@ project:
 
    .. note::
 
-      If you get errors from
-      configure.ac
-      , which
-      autoreconf
+      If you get errors from ``configure.ac``, which ``autoreconf``
       runs, that indicate missing files, you can use the "-i" option,
       which ensures missing auxiliary files are copied to the build
       host.
@@ -206,9 +203,7 @@ regarding variable behavior:
 .. note::
 
    Regardless of how you set your variables, if you use the "-e" option
-   with
-   make
-   , the variables from the SDK setup script take precedence:
+   with ``make``, the variables from the SDK setup script take precedence:
    ::
 
       $ make -e target