use xmemdupz() to allocate copies of strings given by start and length

diff --git a/sh-i18n--envsubst.c b/sh-i18n--envsubst.c
index 855d28cf9440aba175489b63e5d24665126faf2a..6dd03a974ae9a5063c40cd50e0c6e7645afca971 100644 (file)
--- a/sh-i18n--envsubst.c
+++ b/sh-i18n--envsubst.c
@@ -278,9 +278,7 @@ static string_list_ty variables_set;
 static void
 note_variable (const char *var_ptr, size_t var_len)
 {
-  char *string = xmalloc (var_len + 1);
-  memcpy (string, var_ptr, var_len);
-  string[var_len] = '\0';
+  char *string = xmemdupz (var_ptr, var_len);
 
   string_list_append (&variables_set, string);
 }