AppDetails: don't remove last character

When fixing the trailing newline issue, I overlooked the fact that
subsequence's second index is exclusive, not inclusive, so it's i<=len not
i<len.

F-Droid/src/org/fdroid/fdroid/AppDetails.java

@@ -1127,7 +1127,7 @@ public class AppDetails extends AppCompatActivity implements ProgressListener, A
             if (i == s.length()-1) {
                 return s;
             }
-            return s.subSequence(0, i);
+            return s.subSequence(0, i+1);
         }
 
         private ViewGroup layout_links_content;