diff -ru psmisc-22.21/src/pstree.c psmisc-22.21-new/src/pstree.c
 --- psmisc-22.21/src/pstree.c	2014-02-01 21:59:07.000000000 -0800
 +++ psmisc-22.21-new/src/pstree.c	2016-04-28 16:09:30.528897670 -0700
 @@ -816,10 +816,10 @@
  		return threadname;
  	    }
  	}
 +        fclose(file);
      }
      /* Fall back to old method */
      sprintf(threadname, "{%.*s}", COMM_LEN, comm);
 -    fclose(file);
      return threadname;
  }