Eliminate trailing whitespace in trval output

Eliminate trailing whitespace in trval output

Modify the trval output slightly so that the reference trval output
files don't containing trailing whitespace, to make them friendlier to
our git hooks.  (The pkinit and ldap trval reference files now contain
a leading blank line, which isn't very elegant, but avoiding that
requires too much Makefile.in complexity.)  Also correct a typo.