Description of problem:
Upgrading to latest bind subpackages yields this error in two subpackages

Version-Release number of selected component (if applicable):
9.3.4-5.fc6

How reproducible:
always

Steps to Reproduce:
1.upgrade to latest bind packages
2.
3.
  
Actual results:
  36:Installing caching-names.. ######################################## [ 90%]
/usr/sbin/bind-chroot-admin: line 224: [: : unary operator expected            
Stopping named: [  OK  ]
Starting named: [  OK  ]
  38:Installing bind-chroot     ######################################## [ 95%]
Output from bind-chroot-31:9.3.4-5.fc6@x86_64:                                 
/usr/sbin/bind-chroot-admin: line 224: [: : unary operator expected            


Expected results:
No errors in scripts

Additional info:
    223     . /etc/sysconfig/named
    224     if [ "$ENABLE_ZONE_WRITE" =  [yY1]* ]; then
    225         return 0;
    226     fi;

The comaprison is bogus, it assumes that test's equality operation applies a
globbing expression matching, while in reality it globs on files matching [yY1]*
in the current folder.

I you want to do such kind of a testing try (untested)

> if echo "$ENABLE_ZONE_WRITE" | grep -E '^[yY1]' > /dev/null; then