[FE training-materials-updates] Fix compilation error

[Maxime Ripard]

Repository : git://git.free-electrons.com/training-materials.git

On branch  : jelly-bean
Link       : http://git.free-electrons.com/training-materials/commit/?id=935dcdfaae769ef55a0c615af476b762f4863e1e

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commit 935dcdfaae769ef55a0c615af476b762f4863e1e
Author: Maxime Ripard <maxime.ripard at free-electrons.com>
Date:   Fri Oct 18 15:13:29 2013 +0200

    Fix compilation error
    
    Signed-off-by: Maxime Ripard <maxime.ripard at free-electrons.com>


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935dcdfaae769ef55a0c615af476b762f4863e1e
 .../android-build-system-envsetup.tex              |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/slides/android-build-system-envsetup/android-build-system-envsetup.tex b/slides/android-build-system-envsetup/android-build-system-envsetup.tex
index efc2528..b225d4f 100644
--- a/slides/android-build-system-envsetup/android-build-system-envsetup.tex
+++ b/slides/android-build-system-envsetup/android-build-system-envsetup.tex
@@ -98,7 +98,7 @@
   \item[godir] Go to the directory containing the given file
   \item[pid] Use ADB to get the PID of the given process
   \item[gdbclient] Use ADB to set up a remote debugging session
-  \item[key_back] Sends a input event corresponding to the the Back
+  \item[key\_back] Sends a input event corresponding to the the Back
     key to the device
   \end{description}
 \end{frame}