Math.lyx: correct wrong info about \mathindent

lib/doc/Changelog-Math-LyX_22.txt

@@ -1,3 +1,8 @@
+For LyX 2.2.3:
+
+- sec. 17: new sentence
+
+
 For LyX 2.2.1:
 
 - sec. 11: (Japanese only) new table row with shortcuts

lib/doc/Math.lyx

@@ -27600,11 +27600,8 @@ mathindent}{15mm}
 \end_layout
 
 \begin_layout Standard
-When no length is specified, the predefined value of 30
-\begin_inset space \thinspace{}
-\end_inset
-
-pt will be used.
+When no length is specified, a predefined value will be used.
+ The value depends on the used document class.
 \end_layout
 
 \end_deeper

lib/doc/de/Math.lyx

@@ -27433,11 +27433,8 @@ mathindent}{15mm}
 
 \begin_layout Standard
 ein.
- Wenn keine Länge vorgegeben wird, wird der voreingestellte Wert von 30
-\begin_inset space \thinspace{}
-\end_inset
-
-pt verwendet.
+ Wenn keine Länge vorgegeben wird, wird ein voreingestellter Wert verwendet.
+ Dieser hängt von der verwendeten Dokumentklasse ab.
 \end_layout
 
 \end_deeper

lib/doc/es/Math.lyx

@@ -27901,11 +27901,10 @@ mathindent}{15mm}
 \end_layout
 
 \begin_layout Standard
-Si no se especifica longitud se usa el valor predeterminado de 30
-\begin_inset space \thinspace{}
-\end_inset
-
-pt.
+Si no se especifica longitud se usa un valor predeterminado.
+ 
+\lang english
+The value depends on the used document class.
 \end_layout
 
 \end_deeper

lib/doc/fr/Math.lyx

@@ -27690,11 +27690,10 @@ mathindent}{15mm}
 \end_layout
 
 \begin_layout Standard
-Si on ne spécifie pas de distance, la valeur prédéfinie de 30
-\begin_inset space \thinspace{}
-\end_inset
-
-pt est utilisée.
+Si on ne spécifie pas de distance, une valeur prédéfinie est utilisée.
+ 
+\lang english
+The value depends on the used document class.
 \end_layout
 
 \end_deeper

lib/doc/ja/Math.lyx

@@ -245,7 +245,7 @@ End
 \papersides 2
 \paperpagestyle plain
 \tracking_changes false
-\output_changes true
+\output_changes false
 \html_math_output 0
 \html_css_as_file 0
 \html_be_strict false
@@ -27147,16 +27147,9 @@ mathindent}{15mm}
 
 \begin_layout Standard
 
-\series bold
-
-\backslash
-mathindent
-\series default
-を明示的に指定しない場合には，事前に定義されている30
-\begin_inset space \thinspace{}
-\end_inset
-
-ptが適用されます．
+\lang english
+When no length is specified, a predefined value will be used.
+ The value depends on the used document class.
 \end_layout
 
 \end_deeper