Description:
------------
pcre-regexp + safemode affects output of 

header("WWW-Authenticate: Basic realm=\"ABC\");

and causes internal server error with mod_fcgi.

The problem is in 4.3.7 and latest stable cvs 2004-06-07


In safemode without pcre-regexp php return 
WWW-Authenticate: Basic realm="1000"

With pcre-regexp php returns
WWW-Authenticate:  Basic realm="ABC-1000"

I suspect the extra space between key and value to cause mod_fcgi to "internal server error".


Reproduce code:
---------------
<? 

header("HTTP/1.1 401 Unauthorized");
header("WWW-Authenticate: Basic realm=\"ABC\"");

echo "I need your credentials";

?>



Expected result:
----------------
Status: 401
Content-type: text/html
X-Powered-By: PHP/4.3.7
WWW-Authenticate: Basic realm="ABC-1000"



Actual result:
--------------
without pcre-regexp:

Status: 401
Content-type: text/html
X-Powered-By: PHP/4.3.7
WWW-Authenticate: Basic realm="1000"



with pcre-regexp:

Status: 401
Content-type: text/html
X-Powered-By: PHP/4.3.7
WWW-Authenticate:  Basic realm="ABC-1000"

(notice extra space)