[webrtc-pc] Merged Pull Request: Fix to use correct character

fluffy has just merged pull request 501 for 
https://github.com/w3c/webrtc-pc:

== Fix to use correct character ==
There is a place where some windows editor inserted the wrong charter.
 This is purely editorial to fix that. 


See https://github.com/w3c/webrtc-pc/pull/501