actually name repo correctly

Author: jrperritt

.travis.yml

@@ -12,7 +12,7 @@ env:
 before_install:
   - go get github.com/axw/gocov/gocov
   - go get github.com/mattn/goveralls
-  - go get github.com/gotestcover/gotestcover
+  - go get github.com/pierrre/gotestcover
   - if ! go get github.com/golang/tools/cmd/cover; then go get golang.org/x/tools/cmd/cover; fi
 script:
   - script/cibuild