Upgrade rmagick dependency. Fix deprecation warning.

Author: ggreer

Diff for: jekyll-gallery-generator.gemspec

@@ -1,7 +1,7 @@
 Gem::Specification.new do |spec|
   spec.name        = "jekyll-gallery-generator"
   spec.summary     = "Generate galleries with thumbnails for your Jekyll site."
-  spec.version     = "1.2.2"
+  spec.version     = "1.2.4"
   spec.authors     = ["Geoff Greer"]
   spec.email       = "[email protected]"
   spec.homepage    = "https://github.com/ggreer/jekyll-gallery-generator"
@@ -13,7 +13,7 @@ Gem::Specification.new do |spec|
   spec.requirements << "imagemagick, >=v6.9 (needed by RMagick)"
 
   spec.add_runtime_dependency "exifr", "~> 1.3"
-  spec.add_runtime_dependency "rmagick", "~> 2.12"
+  spec.add_runtime_dependency "rmagick", "~> 4.1.1"
 
   spec.add_development_dependency 'jekyll', '~> 3.8', '>= 3.8.3'
   spec.add_development_dependency "bundler", "~> 1.6"

Diff for: lib/jekyll-gallery-generator.rb

@@ -70,7 +70,7 @@ def write(dest)
   class ReadYamlPage < Page
     def read_yaml(base, name, opts = {})
       begin
-        self.content = File.read(File.join(base.to_s, name.to_s), (site ? site.file_read_opts : {}).merge(opts))
+        self.content = File.read(File.join(base.to_s, name.to_s), **(site ? site.file_read_opts : {}).merge(opts))
         if content =~ /\A(---\s*\n.*?\n?)^((---|\.\.\.)\s*$\n?)/m
           self.content = $POSTMATCH
           self.data = SafeYAML.load($1)