evi: fix shm duplicate of multiple params

This fix ensures that all parameters are duplicated in SHM, instead of
only the first one.
Thanks go to Rob Moore for reporting it in #2669

(cherry picked from commit 3a9b4a1)

evi/evi_params.c

@@ -173,7 +173,7 @@ evi_params_p evi_dup_shm_params(evi_params_p pkg_params)
 	sp = (evi_param_p)(shm_params + 1);
 	p = (char *)(shm_params) + parambufs_size;
 	for (param = pkg_params->first, prev = NULL; param;
-			prev = sp, param = param->next) {
+			prev = sp++, param = param->next) {
 		sp->flags = param->flags;
 		sp->next = NULL;
 		sp->name.len = param->name.len;
@@ -194,7 +194,6 @@ evi_params_p evi_dup_shm_params(evi_params_p pkg_params)
 			shm_params->last = sp;
 		} else
 			shm_params->first = sp;
-		sp++;
 	}
 	return shm_params;
 }