--transform bug with match numbers

[Anthony Heading]

Hi,

I believe this is a small bug in the filename transformation option.
Assuming that /etc/passwd exists, and trying to change the second letter 's' to 
'@':

tar cf - /etc/passwd | tar tf - --transform='s:s:@:2' --show-transformed-names
tar: Removing leading `/' from member names
etc/paetc/pas@wd

A simple reordering of the code produces the expected result 'etc/pas@wd'

Anthony


diff --git a/src/transform.c b/src/transform.c
index 2b60235..2cc927e 100644
--- a/src/transform.c
+++ b/src/transform.c
@@ -493,9 +493,6 @@ _single_transform_name_to_obstack (struct transform *tf, 
char *input)
 
          disp = rmp[0].rm_eo;
 
-         if (rmp[0].rm_so)
-           obstack_grow (&stk, input, rmp[0].rm_so);
-
          nmatches++;
          if (tf->match_number && nmatches < tf->match_number)
            {
@@ -504,6 +501,9 @@ _single_transform_name_to_obstack (struct transform *tf, 
char *input)
              continue;
            }
 
+         if (rmp[0].rm_so)
+           obstack_grow (&stk, input, rmp[0].rm_so);
+
          for (segm = tf->repl_head; segm; segm = segm->next)
            {
              switch (segm->type)