* editfns.c (dump_tz_string): No longer const.

It might be modified.

src/ChangeLog

 2014-10-12  Paul Eggert  <eggert@cs.ucla.edu>
 
+	* editfns.c (dump_tz_string): No longer const.
+	It might be modified.
+
 	* nsmenu.m (clear): Assume OS X 10.6 or later.
 
 2014-10-12  Jan Djärv  <jan.h.d@swipnet.se>

src/editfns.c

@@ -90,7 +90,7 @@ static char const *initial_tz;
 
 /* A valid but unlikely setting for the TZ environment variable.
    It is OK (though a bit slower) if the user chooses this value.  */
-static char const dump_tz_string[] = "TZ=UtC0";
+static char dump_tz_string[] = "TZ=UtC0";
 
 void
 init_editfns (void)
@@ -109,7 +109,7 @@ init_editfns (void)
   if (!initialized)
     {
 # ifdef HAVE_TZSET
-      xputenv ((char *) dump_tz_string);
+      xputenv (dump_tz_string);
       tzset ();
 # endif
       return;