Only show comparison link for >2 commits #1110

We can look at the PushCommits object to see how many commits were
included in a commit, and add some template logic to only show the
comparison link when there are at least 2 commits in a push. We also
correct the link to display the number of commits.

conf/locale/locale_pl-PL.ini

@@ -1018,7 +1018,7 @@ comment_issue=`skomentował problem <a href="%s/issues/%s">#%[2]s %[3]s</a>`
 merge_pull_request=scalił pull request <a href="%s/pulls/%s"> %s #%[2]s"</a>
 transfer_repo=przeniósł repozytorium <code>%s</code> do <a href="%s">%s</a>
 push_tag=opublikował tag <a href="%s/src/%s">%[2]s</a> w <a href="%[1]s">%[3]s</a>
-compare_2_commits=Zobacz porównanie tych 2 commitów
+compare_commits=Zobacz porównanie tych %d commitów
 
 [tool]
 ago=temu