[bootlin/training-materials updates] master: Boot time slides: mention "-o" option of grabserial (d1b96ffe)

[Michael Opdenacker]

Repository : https://github.com/bootlin/training-materials
On branch  : master
Link       : https://github.com/bootlin/training-materials/commit/d1b96ffe2907cb5e55054508fe711ad99442cb74

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

commit d1b96ffe2907cb5e55054508fe711ad99442cb74
Author: Michael Opdenacker <michael.opdenacker at bootlin.com>
Date:   Wed Apr 13 18:54:03 2022 +0200

    Boot time slides: mention "-o" option of grabserial
    
    Signed-off-by: Michael Opdenacker <michael.opdenacker at bootlin.com>


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

d1b96ffe2907cb5e55054508fe711ad99442cb74
 slides/boot-time-measuring/boot-time-measuring.tex | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/slides/boot-time-measuring/boot-time-measuring.tex b/slides/boot-time-measuring/boot-time-measuring.tex
index 867172bf..989c42b9 100644
--- a/slides/boot-time-measuring/boot-time-measuring.tex
+++ b/slides/boot-time-measuring/boot-time-measuring.tex
@@ -115,6 +115,8 @@ was received at that time.}
   A normal string may not match in the middle of a line.
   \item Example: you may have to replace \code{-m "Starting kernel"} by
   \code{-m ".*Starting kernel.*"}.
+  \item You can store a copy of the output to a file using the \code{-o}
+        option. No need to copy / paste or redirect the output to keep it.
 \end{itemize}
 \end{frame}
 
@@ -132,7 +134,6 @@ Later, we will see specific resources for measuring time
 \end{itemize}
 \end{frame}
 
-
 \setuplabframe {Measuring time}
 {
 Measuring time with software