appveyor: fix syntax error

appveyor.yml

@@ -45,8 +45,13 @@ test: off
 deploy: off
 
 on_success:
-- cmd: git checkout -q %APPVEYOR_REPO_BRANCH%
-- cmd: git add -- jme3-bullet-native/libs/native/windows/
-- cmd: git commit -m "[ci skip] bullet: update windows natives"
-- cmd: git pull -q --rebase
-- cmd: git push git@github.com:jMonkeyEngine/jmonkeyengine.git
+- cmd: >-
+    git checkout -q %APPVEYOR_REPO_BRANCH%
+
+    git add -- jme3-bullet-native/libs/native/windows/
+
+    git commit -m "[ci skip] bullet: update windows natives"
+
+    git pull -q --rebase
+
+    git push git@github.com:jMonkeyEngine/jmonkeyengine.git

jme3-bullet-native/build.gradle

@@ -191,6 +191,7 @@ unzipBullet.dependsOn {
 }
 
 task unzipBulletIfNeeded {
+
 }
 
 unzipBulletIfNeeded.dependsOn {