sed: fix breakage added by zero length match code

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/editors/sed.c b/editors/sed.c
index 85c84665b..0fe82f337 100644
--- a/editors/sed.c
+++ b/editors/sed.c
@@ -767,7 +767,7 @@ static int do_subst_command(sed_cmd_t *sed_cmd, char **line_p)
                  * second is "" before "d", third is "" after "d".
                  * Second match is NOT replaced!
                  */
-                if (prev_match_empty || start != 0) {
+                if (prev_match_empty || start != 0 || start != end) {
                         dbg("inserting replacement at %d in '%s'", start, line);
                         do_subst_w_backrefs(line, sed_cmd->string);
                 } else {