bug#26504: patch for efaq-w32.texi

[Tak Kunihiro <tkk@misasa.okayama-u.ac.jp>]

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I added a recipe NOT to have the second Emacs.


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--- efaq-w32.texi	2017-04-15 07:41:13.130868400 +0900
+++ efaq-w32-b.texi	2017-04-15 08:39:53.665649200 +0900
@@ -706,6 +706,18 @@
 defines a number of other keys (C-v, Shift selection), and can be turned
 on from the @emph{Options} menu.
 
+@node No double Emacs
+@subsection No double Emacs
+
+Emacs should be launched by @command{runemacs.exe} and referred by
+@command{emacsclientw.exe}.  When you choose Emacs (to be exact, a
+shortcut with target @command{C:\emacs-26.1\bin\runemacs.exe}) from
+Start menu as if a Window app, you may launch another Emacs.  To avoid
+having double Emacs, change target of the shortcut to
+@code{C:\emacs-26.1\bin\emacsclientw.exe "" --alternate-editor
+C:\emacs-26.1\bin\runemacs.exe}.
+
+
 @node Window operations
 @section Window operations
 @cindex maximize frames from lisp