diff --git a/string/crlf.anubis b/string/crlf.anubis
index 503358a..4c7b2cd 100644
--- a/string/crlf.anubis
+++ b/string/crlf.anubis
@@ -101,13 +101,26 @@ public define ResultCopy
   copy_file_and_convert_to_CRLF
   ( 
     String                  file, 
-    ByteArray -> ByteArray  converter    
+    ByteArray -> ByteArray  converter,
+    Bool                    keep_org
   )=
   if rename(file, file+".tmp") then
     with result = copy_file_and_convert_to_CRLF(file+".tmp", file, converter),
-    forget(remove(file+".tmp"));
+    (if keep_org then
+      unique
+    else
+      forget(remove(file+".tmp")));
     result
   else
-    cant_create_file.
+    cant_create_file
+.
     
   
+public define ResultCopy 
+  copy_file_and_convert_to_CRLF
+  ( 
+    String                  file, 
+    ByteArray -> ByteArray  converter
+  )=
+  copy_file_and_convert_to_CRLF(file, converter, false)
+.
--
libgit2 0.21.4