Enclose startParameter.excludedTaskNames inside task

jme3-bullet-native/build.gradle

@@ -176,6 +176,7 @@ binaries.withType(SharedLibraryBinary) { binary ->
     jar.dependsOn("copyBinaryToLibs${targetPlatform}")
 }
 
+task {
     // Remove all native build tasks, will be added as needed above
     gradle.startParameter.excludedTaskNames += "windows_x86BulletjmeStaticLibrary"
     gradle.startParameter.excludedTaskNames += "windows_x86_64BulletjmeStaticLibrary"
@@ -190,6 +191,7 @@ gradle.startParameter.excludedTaskNames += "linux_x86BulletjmeSharedLibrary"
     gradle.startParameter.excludedTaskNames += "linux_x86_64BulletjmeSharedLibrary"
     gradle.startParameter.excludedTaskNames += "osx_x86BulletjmeSharedLibrary"
     gradle.startParameter.excludedTaskNames += "osx_x86_64BulletjmeSharedLibrary"
+}
 
 // Helper class to wrap ant dowload task
 class MyDownload extends DefaultTask {