fix empty if statement
fix empty if statement

mdissel/lucene.net,apache/lucenenet,sisve/lucenenet,NightOwl888/lucenenet,jeme/lucenenet,jeme/lucenenet,jeme/lucenenet,zmaruo/lucenenet,zmaruo/lucenenet,antiufo/lucenenet,NightOwl888/lucenenet,jeme/lucenenet,sisve/lucenenet,laimis/lucenenet,antiufo/lucenenet,mdissel/lucene.net,apache/lucenenet,apache/lucenenet,apache/lucenenet,laimis/lucenenet,NightOwl888/lucenenet,NightOwl888/lucenenet,jpsullivan/lucenenet,jpsullivan/lucenenet