bin/gem2gv in ruby-graphviz-1.0.7 vs bin/gem2gv in ruby-graphviz-1.0.8

@@ -1,18 +1,18 @@
 #!/usr/bin/env ruby
 # Copyright (C) 2010 Gregoire Lejeune <[e-mail]>
-# 
+#
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation; either version 2 of the License, or
 # (at your option) any later version.
-# 
+#
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
-# 
+#
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
 
 require 'rubygems'
@@ -20,73 +20,73 @@
 require 'getoptlong'
 
 class Gem2Gv
   def initialize( xGVPath, xUse )
     @oGraph = GraphViz::new( :G, :path => xGVPath, :use => xUse )
-    
+
     @nodes = []
     @name = 'gem2gv'
   end
-  
+
   def out( xFormat = "dot", xFile = nil )
-    if xFile.nil? == true
+    if xFile.nil?
       @oGraph.output( xFormat => String )
     else
       @oGraph.output( xFormat => xFile )
     end
   end
-  
+
   def go( gemName, version = ">0" )
     nodes = getDependency(gemName, version)
-    
+
     createEdges( gemName, version, nodes )
-    
+
     nodes.each do |node|
       unless @nodes.include?(node)
         @nodes << node
         go( node[:name], node[:version] )
       end
     end
   end
 
   def getDependency( gemName, version = ">0" )
     nodes = []
-    
+
     dependency = Gem::Dependency.new( gemName, version )
     fetcher = Gem::SpecFetcher.fetcher
-    
+
     fetcher.find_matching(dependency).each do |spec_tuple, source_uri|
       spec = fetcher.fetch_spec spec_tuple, URI.parse(source_uri)
-      
+
       spec.dependencies.each do |dep|
         #nodes << { :name => dep.name, :version => dep.version_requirements.to_s} unless nodes.include?({ :name => dep.name, :version => dep.version_requirements.to_s})
         nodes << { :name => dep.name, :version => ">0" } unless nodes.include?({ :name => dep.name, :version => ">0" })
       end
     end
-    
+
     return nodes
   end
-  
+
   def getNode( name, version )
     #nodeName = "#{name}#{version}"
     #nodeLabel = "#{name}\n#{version}"
     nodeName = "#{name}"
     nodeLabel = "#{name}"
     return @oGraph.get_node(nodeName) || @oGraph.add_nodes( nodeName, "label" => nodeLabel )
   end
-  
+
   def createEdges( gemName, version, nodes )
     nodeA = getNode( gemName, version )
-    
+
     nodes.each do |node|
       nodeB = getNode( node[:name], node[:version] )
       @oGraph.add_edges( nodeA, nodeB )
     end
   end
 end
 
-def usage 
+def usage
   puts "usage: gem2gv [-Tformat] [-ofile] [-h] [-V] gemname"
   puts "-T, --output-format format    Output format (default: PNG)"
   puts "-o, --output-file file        Output file (default: STDOUT)"
   puts "-p, --path                    Graphviz path"
   puts "-u, --use PROGRAM             Program to use (default: dot)"
@@ -152,10 +152,10 @@
   exit
 end
 
 xGem = ARGV[0]
 
-if xGem.nil? == true
+if xGem.nil?
   usage( )
   exit
 end