Revert "Clicking a link in the HTML reporter does exact filtering"

This change broke spec filtering in Karma by changing the format of the
`spec` query parameter. Although karma-jasmine-html-reporter uses
jasmine-core's HtmlSpecFilter, karm-jasmine provides its own spec filter
that interprets the query parameters itself.

This feature may be reintroduced in 6.0 as a breaking change.

This reverts commit 8309416cb2.

src/boot/boot1.js

@@ -81,14 +81,14 @@
   /**
    * Filter which specs will be run by matching the start of the full name against the `spec` query param.
    */
-  const specFilter = new jasmine.HtmlExactSpecFilter({
+  const specFilter = new jasmine.HtmlSpecFilter({
     filterString: function() {
       return queryString.getParam('spec');
     }
   });
 
   config.specFilter = function(spec) {
-    return specFilter.matches(spec);
+    return specFilter.matches(spec.getFullName());
   };
 
   env.configure(config);