Ignore equal when link_text_fragment isn't matched

 * Same as in link_option production.

 * Fixes:
     enwiki/Talk%3ADaymond_Langkow
     enwiki/1954_France_rugby_union_tour_of_Argentina_and_Chile

 * Removes some trailing whitespace.

Bug: 64954
Change-Id: Ifb09c662878e301b2827f8420739183b2b481857