$request->to_header does not create a valid header if no realm is specified

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Generate an OAuth request object
2. examine $request->to_header();

What is the expected output? What do you see instead?
Notice the string generated has a comma directly after OAuth instead of a 
space: "Authorization: OAuth,oauth_version=..."

Expect to see "Authorization: OAuth oauth_version.."

What version of the product are you using? On what operating system?
PHP OAuth r1163 

Please provide any additional information below.
If a realm is specified, the problem is handled correctly.

Original issue reported on code.google.com by TaylorSi...@gmail.com on 14 Jan 2010 at 9:38

[GoogleCodeExporter]

Original comment by jmkrist...@gmail.com on 17 Jan 2010 at 9:47

• Added labels: Lib-PHP

[GoogleCodeExporter]

Original comment by morten.f...@gmail.com on 17 Feb 2010 at 4:50

• Added labels: Type-Defect

[GoogleCodeExporter]

Changed code and test cases in revision r1169 - please verify and close issue.

Original comment by morten.f...@gmail.com on 1 Mar 2010 at 6:51

• Changed state: Fixed