Fix a crash in platform_info/ruby.rb in case RubyGems is not installed
Fix a crash in platform_info/ruby.rb in case RubyGems is not installed

phusion/passenger,phusion/passenger,kewaunited/passenger,clemensg/passenger,antek-drzewiecki/passenger,cgvarela/passenger,antek-drzewiecki/passenger,phusion/passenger,cgvarela/passenger,cgvarela/passenger,cgvarela/passenger,kewaunited/passenger,cgvarela/passenger,clemensg/passenger,kewaunited/passenger,antek-drzewiecki/passenger,kewaunited/passenger,clemensg/passenger,clemensg/passenger,antek-drzewiecki/passenger,cgvarela/passenger,clemensg/passenger,kewaunited/passenger,kewaunited/passenger,antek-drzewiecki/passenger,kewaunited/passenger,phusion/passenger,antek-drzewiecki/passenger,clemensg/passenger,antek-drzewiecki/passenger,phusion/passenger,cgvarela/passenger,clemensg/passenger,clemensg/passenger,cgvarela/passenger,antek-drzewiecki/passenger,phusion/passenger,kewaunited/passenger,phusion/passenger,phusion/passenger