Cleanup temp files from tmp dir, not log dir. Fix #2783. close[t:2783]

git-svn-id: file:///svn/toku/tokudb@21828 c7de825b-a66e-492c-adef-691d508d4ae1

src/loader.c

@@ -399,7 +399,7 @@ int toku_loader_abort(DB_LOADER *loader)
 int toku_loader_cleanup_temp_files(DB_ENV *env) {
     int result;
     struct dirent *de;
-    char * dir = env->i->real_data_dir;
+    char * dir = env->i->real_tmp_dir;
     DIR *d = opendir(dir);
     if (d==0) {
         result = errno; goto exit;