pp_sys.c:pp_gmtime: Remove redundant EXTEND_MORTAL

The purpose of EXTEND_MORTAL is to extend the mortals stack only
once before pushing multiple items.  Here we are just going to push
one item, so extending it gains us nothing, as sv_2mortal is going
to do that anyway.

Moreover, we will not even be using the mortals stack if there has
been an error.

1 files changed, 0 insertions, 1 deletions

diff --git a/pp_sys.c b/pp_sys.c
index aa006e6d30..a301770671 100644
--- a/pp_sys.c
+++ b/pp_sys.c
@@ -4649,7 +4649,6 @@ PP(pp_gmtime)
 
     if (GIMME_V != G_ARRAY) {	/* scalar context */
         EXTEND(SP, 1);
-        EXTEND_MORTAL(1);
 	if (err == NULL)
 	    RETPUSHUNDEF;
        else {