add file command

.gitlab-ci.yml

@@ -15,7 +15,7 @@ package:
     - export VERSION=$(echo ${CI_COMMIT_TAG#*v} | cut -d'-' -f1)
     - export PATCHLEVEL=$(echo ${CI_COMMIT_TAG} | cut -d'-' -f2)
     - apt-get -qq update
-    - apt-get -qqy install ruby-dev ruby-ffi curl
+    - apt-get -qqy install ruby-dev ruby-ffi curl file
     - gem install specific_install
     - gem specific_install https://github.com/root360/fpm.git all_fixes
     - mkdir -p "${CI_PROJECT_DIR}/package_root/usr/bin"