3 bugs for zsh3.0.0

[Huy Le <huyle@xxxxxxxxxxxxxxxxxxxxxx>]

Hi, only tried these out HP-UX A.09.01

1) Segmentation fault on:
a="+-------------------------------------------------------+  Under
|            | HYDRO    AUTO     |    Printer | SHRED   |  Graduate
|            |                   | Stereo     | paulvig |  Computer
| MINCE                                                 |  Science
|-----------     -----------------------     -----------|
| LUST             DICE     | WRATH            PULP     |  166 Jorgensen
|                           |                           |  (Building 80)
|-----------     -----------+-----------     -----------|
| AVARICE          FRAPPE   | PRIDE            LIQUEFY  |  (818) 395-2028
|                           |                           |  Door combo: 34-12
|-----------     -----------+-----------     -----------|  Root P/W: |<R@|<
| WHIP             PUREE    | CHOP             CRUSH    |
|                           |                           |  California
|-----------     -----------+-----------     -----------|  Institute of
| GLUTTONY         BEAT     | BLEND          SLO        |  Technology  
|                           |                TH         |  1201 E. California
+-----------     -----------------------     -----------+  Pasadena, CA 91125
|                                                        
|                                                          CS Machine Room
|                                                       +  76 Jorgensen
|       HEDONO   | PHOBO         CLAUSTRO |             |  +----------+
|                |                        |             |  | OFF      |
|     -----------+-----------  -----------+-----------  |  |          |
|       ARACHNO  | AMATHO        XENO     | MYXO        |  | ENVY     |
|       technot  |                        |             |  |          |
|                                                       |  +----------+  
|       MONO     | ACRO          13       | AGORA       |
|                | liubo                  |             |
|     -----------+-----------  -----------+-----------  |
|       TAPHE    | NECRO         PHOTO    | PYRO        |
|                |                        | kkant       |
|                                                       |
+-------------------------------+=========+-------------+"
b="$a"
[[ "$a" != "$b" ]] && echo yes


2) bus error on:
local undefined
echo ${undefined#crap}


3) zsh: error on TTY read: bad file number
echo `echo \`vared -c result\` `