Updated UserGuide after removal of macro insertion while in regexp mode.

Fixed regression case (now typing twice "\" leads to "\\", i.e., the regexp matching the backslash char).


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@39019 a592a061-630c-0410-9148-cb99ea01b6c8

development/autotests/findadv-18-in.txt

@@ -5,6 +5,6 @@ TestBegin test.lyx -dbg find > lyx-log.txt 2>&1
 KK: a b c\C\[Home]
 KK: \Cs
 KK: \CF
-KK: \Axregexp-mode\[Return]\\\\s\[Return]
+KK: \Axregexp-mode\[Return]\\s\[Return]
 TestEnd
 Assert pcregrep -M 'Putting selection at .*idx: 0 par: 0 pos: 1\n with len: 1' lyx-log.txt

lib/doc/UserGuide.lyx

@@ -1,4 +1,4 @@
-#LyX 2.0 created this file. For more info see http://www.lyx.org/
+#LyX 2.1 created this file. For more info see http://www.lyx.org/
 \lyxformat 413
 \begin_document
 \begin_header
@@ -30250,11 +30250,7 @@ Finally, references to (sub)expressions in regexp may be used as usual,
 \begin_inset Formula $\backslash2$
 \end_inset
 
-, etc., where a 
-\begin_inset Formula $\backslash$
-\end_inset
-
- symbol is entered in regexp mode by pressing twice the backslash key.
+, etc..
  For example, try searching for the regexp 
 \begin_inset Formula $([a-z]+)[[:blank:]]\backslash1$
 \end_inset