Use Flex Code inset instead of typewriter custom font style.

Change markup to use semantic markup instead of hard-coded
typewriter for code examples containing --.
Works around false positive warning on changed dashes
leading to lyx2lyx export ctest failures.

lib/doc/es/Additional.lyx

@@ -1,4 +1,4 @@
-#LyX 2.3 created this file. For more info see http://www.lyx.org/
+#LyX 2.4 created this file. For more info see https://www.lyx.org/
 \lyxformat 544
 \begin_document
 \begin_header
@@ -22679,7 +22679,14 @@ status collapsed
 
  
 \family typewriter
-svn update --non-interactive 
+svn update 
+\family default
+
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+--non-interactive 
 \lang english
 
 \begin_inset Quotes qld
@@ -22694,6 +22701,11 @@ svn update --non-interactive
 \end_inset
 
 
+\end_layout
+
+\end_inset
+
+
 \end_layout
 
 \begin_layout Subsubsection
@@ -23767,8 +23779,18 @@ new project
  Para información sobre el uso del programa cliente de Subversion, ejecuta
  
 \family typewriter
-svn --help
+svn 
 \family default
+
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+--help
+\end_layout
+
+\end_inset
+
  en línea de comandos de DOS.
 \end_layout
 
@@ -24451,14 +24473,26 @@ Información de la versión
  soporta número hash GIT del últim ingreso al archivo, autor, fecha y hora
  del último ingreso.
  Todos se obtienen de 
-\family typewriter
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
 git log -n 1 --pretty=format:%H%n%an%n%ai
-\family default
+\end_layout
+
+\end_inset
+
 .
  La información de l versión del árbol se obtiene vía 
-\family typewriter
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
 git describe --abbrev --dirty --long
-\family default
+\end_layout
+
+\end_inset
+
 .
  Véase 
 \begin_inset CommandInset ref

lib/doc/fr/Additional.lyx

@@ -1,4 +1,4 @@
-#LyX 2.3 created this file. For more info see http://www.lyx.org/
+#LyX 2.4 created this file. For more info see https://www.lyx.org/
 \lyxformat 544
 \begin_document
 \begin_header
@@ -23105,7 +23105,12 @@ Ditto.
 \end_inset
 
  
-\family typewriter
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+
+\lang english
 svn update --non-interactive 
 \begin_inset Quotes qld
 \end_inset
@@ -23115,6 +23120,11 @@ svn update --non-interactive
 \end_inset
 
 
+\end_layout
+
+\end_inset
+
+
 \end_layout
 
 \begin_layout Subsubsection
@@ -24268,10 +24278,18 @@ new project
 \family default
 .
  For information on using the Subversion client program, run 
-\family typewriter
-svn --help 
-\family default
-in a DOS shell.
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+
+\lang english
+svn --help
+\end_layout
+
+\end_inset
+
+ in a DOS shell.
 \end_layout
 
 \begin_layout Enumerate
@@ -25059,14 +25077,30 @@ Version Info
  supports GIT hash number of the last commit to the file, author name, date
  and time of last commit.
  All those are extracted from 
-\family typewriter
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+
+\lang english
 git log -n 1 --pretty=format:%H%n%an%n%ai
-\family default
+\end_layout
+
+\end_inset
+
 .
  Tree version information is obtained via 
-\family typewriter
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
+
+\lang english
 git describe --abbrev --dirty --long
-\family default
+\end_layout
+
+\end_inset
+
 .
  See 
 \begin_inset CommandInset ref

lib/doc/ja/Additional.lyx

@@ -1,4 +1,4 @@
-#LyX 2.3 created this file. For more info see http://www.lyx.org/
+#LyX 2.4 created this file. For more info see https://www.lyx.org/
 \lyxformat 544
 \begin_document
 \begin_header
@@ -21301,13 +21301,25 @@ git log
 \begin_layout Standard
 \SpecialChar LyX
 は，ファイルの最終コミットのGITハッシュ番号・著者名・最終コミットの日時をサポートします．これらの情報は，すべて
-\family typewriter
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
 git log -n 1 --pretty=format:%H%n%an%n%ai
-\family default
+\end_layout
+
+\end_inset
+
 によって抽出されます．ツリーバージョン情報は，
-\family typewriter
+\begin_inset Flex Code
+status collapsed
+
+\begin_layout Plain Layout
 git describe --abbrev --dirty --long
-\family default
+\end_layout
+
+\end_inset
+
 で取得されます．詳細については，第
 \begin_inset CommandInset ref
 LatexCommand ref