Refactor sendfriendreq()
Refactor sendfriendreq()

Put the error-strings in one single data-structure and flush the err-file
every time before a new incoming request, so it's empty when the request
succeeds.

cmotc/ratox,insanity54/batox,pranomostro/ratox,pranomostro/ratox,cmotc/ratox,kytvi2p/ratox