Avoiding a warning when compiling with clang, patch by Eitan Adler.

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4622 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

+2014-02-28  Eitan Adler  <lists@eitanadler.com>
+	* src/nano.c (do_toggle) - Constify a char pointer, to fix
+	a warning when compiling with clang (and -Wall).
+
 2014-02-27  Mike Frysinger  <vapier@gentoo.org>
 	* doc/man/nanorc.5 - Relocate the misplaced unbind section,
 	and improve formatting.  (Patch tweaked by Benno.)

src/nano.c

@@ -1367,7 +1367,7 @@ void allow_pending_sigwinch(bool allow)
 void do_toggle(int flag)
 {
     bool enabled;
-    char *desc;
+    const char *desc;
 
     TOGGLE(flag);