brt_cursor_not_set made not static so

we can use it in toku_c_get.

git-svn-id: file:///svn/tokudb@2249 c7de825b-a66e-492c-adef-691d508d4ae1

newbrt/brt.c

@@ -1999,7 +1999,7 @@ static inline void brt_cursor_cleanup(BRT_CURSOR cursor) {
     dbt_cleanup(&cursor->val);
 }
 
-static inline int brt_cursor_not_set(BRT_CURSOR cursor) {
+inline int brt_cursor_not_set(BRT_CURSOR cursor) {
     return cursor->key.data == 0 || cursor->val.data == 0;
 }