Change the default of 'copy? in string-trimmer to #f.

diff --git a/src/runtime/ustring.scm b/src/runtime/ustring.scm
index c13edc268d149c0e3b756ede0e193f21deaeaccf..eb8378c0d237c5239cdb3676ac6d9e23d255b212 100644 (file)
--- a/src/runtime/ustring.scm
+++ b/src/runtime/ustring.scm
@@ -1312,7 +1312,7 @@ USA.
 (define-deferred string-trimmer-options
   (keyword-option-parser
    (list (list 'where '(leading trailing both) 'both)
-        (list 'copy? boolean? #t)
+        (list 'copy? boolean? #f)
         (list 'trim-char? unary-procedure? char-whitespace?))))
 
 (define (string-padder . options)
@@ -1541,6 +1541,7 @@ USA.
 (define (legacy-string-trimmer where)
   (lambda (string #!optional char-set)
     ((string-trimmer 'where where
+                    'copy? #t
                     'trim-char?
                     (char-set-predicate
                      (if (default-object? char-set)