[FE training-materials-updates] yocto: slides: improve the variable flags slide

[Antoine Ténart]

Repository : git://git.free-electrons.com/training-materials.git
On branch  : master
Link       : http://git.free-electrons.com/training-materials/commit/?id=8d93aacd2d3f423824f91a789c80319ca615699c

>---------------------------------------------------------------

commit 8d93aacd2d3f423824f91a789c80319ca615699c
Author: Antoine Tenart <antoine.tenart at bootlin.com>
Date:   Fri Feb 9 16:22:39 2018 +0100

    yocto: slides: improve the variable flags slide
    
    Signed-off-by: Antoine Tenart <antoine.tenart at bootlin.com>


>---------------------------------------------------------------

8d93aacd2d3f423824f91a789c80319ca615699c
 slides/yocto-recipe-extra/yocto-recipe-extra.tex | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/slides/yocto-recipe-extra/yocto-recipe-extra.tex b/slides/yocto-recipe-extra/yocto-recipe-extra.tex
index 053a0b8..9c6ca09 100644
--- a/slides/yocto-recipe-extra/yocto-recipe-extra.tex
+++ b/slides/yocto-recipe-extra/yocto-recipe-extra.tex
@@ -139,8 +139,9 @@ python do_settime() {
 \begin{frame}[fragile]
   \frametitle{Variable flags}
   \begin{itemize}
-    \item {\em Variable flags} are used to control task
-      functionalities.
+    \item {\em Variable flags} are used to store extra information on
+      tasks and varables.
+    \item They are used to control task functionalities.
     \item A number of these flags are already used by BitBake:
       \begin{itemize}
         \item \code{dirs}: directories that should be created before the
@@ -149,11 +150,14 @@ python do_settime() {
         \item \code{noexec}: disable the execution of the task.
         \item \code{nostamp}: do not create a {\em stamp} file when
           running the task. The task will always be executed.
+        \item \code{doc}: task documentation displayed by {\em
+          listtasks}.
       \end{itemize}
   \end{itemize}
   \begin{minted}{sh}
 do_settime[noexec] = "1"
 do_compile[nostamp] = "1"
+do_settime[doc] = "Set the current time in ${TIME}"
   \end{minted}
 \end{frame}