scm: mercurial: code clean up unit adapter test.
remove trailing white-spaces and empty lines from extra/svn/reposman.rb.
remove trailing white-spaces from wiki controller source.
remove trailing white-spaces from issues controller source.
remove trailing white-spaces from query model source.
remove trailing white-spaces from issue moves controller source.
remove trailing white-spaces from time entry model source.
remove trailing white-spaces from news model source.
remove trailing white-spaces from message observer model source.
remove trailing white-spaces from message model source.
