Description of problem:
When entering the root password during an install, a space character is 
rejected as "not being an ascii character".

Version-Release number of selected component (if applicable):
phoebe-3

How reproducible:
always

Steps to Reproduce:
1. Try entering a password containing a space
2.
3.
    
Actual results:
error message about password containing a non-ascii character

Expected results:

password would be accepted

Additional info:

Last time I looked ASCII (not ascii) characters went from 00 (nul) to 7f (del).
You probably do not want people using control characters but I cannot see any 
reason to forbid a space character. The error message text is wrong and the 
code that tests for invalid characters is to restrictive.