Less verbose output in testGuideBasicExample05 (100k dots were printed)
diff --git a/kotlinx-coroutines-core/src/test/kotlin/guide/test/TestUtil.kt b/kotlinx-coroutines-core/src/test/kotlin/guide/test/TestUtil.kt
index f735d49..ab33444 100644
--- a/kotlinx-coroutines-core/src/test/kotlin/guide/test/TestUtil.kt
+++ b/kotlinx-coroutines-core/src/test/kotlin/guide/test/TestUtil.kt
@@ -54,7 +54,13 @@
 
     }
     val lines = ByteArrayInputStream(bytes).bufferedReader().readLines()
-    lines.forEach { println(it) }
+    lines.forEach {
+        val limit = 80
+        if (it.length < limit)
+            println(it)
+        else
+            println(it.substring(0, limit) + " (${it.length} chars)")
+    }
     return lines
 }