(Fdelete_and_extract_region): Use empty_unibyte_string.

diff --git a/src/editfns.c b/src/editfns.c
index 2f759a38dd0a0debbebb03f88c008e94c3957a5d..aca3383943d251b6872907376308d44bd64ec3ad 100644 (file)
--- a/src/editfns.c
+++ b/src/editfns.c
@@ -3031,7 +3031,7 @@ DEFUN ("delete-and-extract-region", Fdelete_and_extract_region,
 {
   validate_region (&start, &end);
   if (XINT (start) == XINT (end))
-    return build_string ("");
+    return empty_unibyte_string;
   return del_range_1 (XINT (start), XINT (end), 1, 1);
 }
 \f