Avoid umask problem with mkstemp by using eina_file_mkstemp

Instead of handling umask in every mkstemp case we can simply use
eina_file_mkstemp for this.

CID: 1039806

src/bin/e_import_config_dialog.c

@@ -50,8 +50,8 @@ _import_edj_gen(E_Import_Config_Dialog *import)
         return;
      }
 
-   strcpy(tmpn, "/tmp/e_bgdlg_new.edc-tmp-XXXXXX");
-   fd = mkstemp(tmpn);
+   strcpy(tmpn, "e_bgdlg_new.edc-tmp-XXXXXX");
+   fd = eina_file_mkstemp(tmpn, NULL);
    if (fd < 0)
      {
         printf("Error Creating tmp file: %s\n", strerror(errno));

src/modules/wl_screenshot/e_mod_main.c

@@ -218,13 +218,13 @@ _cb_handle_global_remove(void *data __UNUSED__, struct wl_registry *registry __U
 static struct wl_buffer *
 _create_shm_buffer(struct wl_shm *_shm, int width, int height, void **data_out)
 {
-   char filename[] = "/tmp/wayland-shm-XXXXXX";
+   char filename[] = "wayland-shm-XXXXXX";
    struct wl_shm_pool *pool;
    struct wl_buffer *buffer;
    int fd, size, stride;
    void *data;
 
-   fd = mkstemp(filename);
+   fd = eina_file_mkstemp(filename, NULL);
    if (fd < 0) 
      {
         fprintf(stderr, "open %s failed: %m\n", filename);