Fix space at w2v output line end

Change-Id: Ie48dc163bec35a3278fac4075e1d5af2131bc40c
diff --git a/app/src/main/kotlin/de/ids_mannheim/korapxmltools/KorapXml2Conllu.kt b/app/src/main/kotlin/de/ids_mannheim/korapxmltools/KorapXml2Conllu.kt
index 817ef5b..56f9e7e 100644
--- a/app/src/main/kotlin/de/ids_mannheim/korapxmltools/KorapXml2Conllu.kt
+++ b/app/src/main/kotlin/de/ids_mannheim/korapxmltools/KorapXml2Conllu.kt
@@ -291,13 +291,23 @@
             tokens[docId]?.forEach { span ->
                 token_index++
                 if (span.from >= sentences[docId]!![sentence_index].to) {
-                    output.append("\n")
+                    if(output.length > 0) {
+                        output.setCharAt(output.length - 1, '\n')
+                    } else {
+                        output.append("\n")
+                    }
                     sentence_index++
                 }
                 output.append(texts[docId]!!.substring(span.from, span.to), " ")
                 real_token_index++
             }
+            if(output.length > 0) {
+                output.deleteCharAt(output.length - 1)
+            }
         } else {
+            if (COMPATIBILITY_MODE) {
+                fname[docId] += "  "
+            }
             output =
                 StringBuilder("# foundry = $foundry\n# filename = ${fname[docId]}\n# text_id = $docId\n").append(
                     tokenOffsetsInSentence(