gem ffi syntax

Author: Yixun-Hu

Gemfile

@@ -29,6 +29,7 @@ end
 group :other_plugins do
     gem 'css_parser'
     gem 'feedjira'
+    gem 'ffi', '~> 1.17'
     gem 'httparty'
     gem 'observer'       # used by jekyll-scholar
     gem 'ostruct'        # used by jekyll-twitter-plugin

Gemfile.lock

@@ -57,11 +57,7 @@ GEM
     feedjira (3.2.1)
       loofah (>= 2.3.1)
       sax-machine (>= 1.0)
-    ffi (1.17.2-aarch64-linux)
-    ffi (1.17.2-arm-linux)
-    ffi (1.17.2-arm64-darwin)
-    ffi (1.17.2-x86_64-darwin)
-    ffi (1.17.2-x86_64-linux)
+    ffi (1.17.2)
     forwardable (1.3.3)
     forwardable-extended (2.6.0)
     gemoji (4.1.0)