Coverity 1355591 resource leak

             if (*strp == NULL)

   	10. alloc_fn: Storage is returned from allocation function dstrdup. [show details]

   	11. var_assign: Assigning: newstr = storage returned from dstrdup(v->str).

   	12. var_assign: Assigning: begin = newstr.

   	13. Falling through to end of if statement

490                        begin = newstr = dstrdup(v->str);

491                else {

492                        newlen += (strlen(*strp) + 1);

493                        newstr = dcalloc(newlen, sizeof(char));

494                        snprintf(newstr, newlen,

495                            "%s,%*s", *strp, (int)v->len, v->str);

496                        /* Free the old value now we've copied it. */

497                        free(*strp);

498                        begin = &newstr[newlen - 1 - v->len];

499                }

   	14. noescape: Resource begin is not freed or pointed-to in config_unescape. [show details]

   	15. Condition (ret = config_unescape(begin)) != 0, taking true branch

500                if ((ret = config_unescape(begin)) != 0)

   	16. leaked_storage: Variable newstr going out of scope leaks the storage it points to.

CID 1355591 (#2-1 of 2): Resource leak (RESOURCE_LEAK)

17. leaked_storage: Variable begin going out of scope leaks the storage it points to.

501                        return (ret);