Reduce signal usage

kotlin-native/build.gradle

diff --git a/kotlin-native/build.gradle b/kotlin-native/build.gradle
index cd4decd..b3a2c54 100644
--- a/kotlin-native/build.gradle
+++ b/kotlin-native/build.gradle
@@ -702,7 +702,7 @@
         tasks.withType(JavaCompile) {
             if (targetCompatibility == "1.6" && sourceCompatibility == "1.6") {
                 options.forkOptions.jvmArgs.add("-J-Xint")
-                options.forkOptions.jvmArgs.add("-J-showversion")
+                options.forkOptions.jvmArgs.add("-J-XX:+ReduceSignalUsage")
             }
         }
     }