Fix some lint cops:

lib/ohai/plugins/darwin/memory.rb

@@ -31,10 +31,11 @@
     vm_stat = shell_out("vm_stat").stdout
     vm_stat_match = /page size of (\d+) bytes/.match(vm_stat)
     page_size = if vm_stat_match and vm_stat_match[1]
-      vm_stat_match[1].to_i
-    else
-      4096
-    end
+                  vm_stat_match[1].to_i
+                else
+                  4096
+                end
+
     vm_stat.split("\n").each do |line|
       ['wired down', 'active', 'inactive'].each do |match|
         unless line.index("Pages #{match}:").nil?

spec/unit/plugins/aix/memory_spec.rb

@@ -25,7 +25,7 @@
     allow(@plugin).to receive(:shell_out).with("svmon -G -O unit=MB,summary=longreal | grep '[0-9]'").and_return(mock_shell_out(0, " 513280.00 340034.17 173245.83   62535.17 230400.05 276950.14  70176.00\n", nil))
     @swap_s = "allocated  =    23887872 blocks    used  =   288912 blocks      free  =    23598960 blocks\n"
     allow(@plugin).to receive(:shell_out).with("swap -s").and_return(mock_shell_out(0,@swap_s, nil))
-  end
+   end
 
   it "should get total memory" do
     @plugin.run

spec/unit/plugins/ruby_spec.rb

@@ -49,7 +49,7 @@
     :host_vendor => ::RbConfig::CONFIG['host_vendor'],
     :gems_dir => %x{#{ruby_bin} #{::RbConfig::CONFIG['bindir']}/gem env gemdir}.chomp,
     :gem_bin => [ ::Gem.default_exec_format % 'gem', 'gem' ].map{|bin| "#{::RbConfig::CONFIG['bindir']}/#{bin}"
-      }.find{|bin| ::File.exists? bin},
+    }.find{|bin| ::File.exists? bin},
     :ruby_bin => ruby_bin
   }.each do |attribute, value|
     it "should have #{attribute} set to #{value.inspect}" do

spec/unit/plugins/solaris2/cpu_spec.rb

@@ -2888,7 +2888,7 @@
         expect(@plugin["cpu"]["104"]["core_id"]).to eql("1117")
         expect(@plugin["cpu"]["112"]["core_id"]).to eql("1124")
         expect(@plugin["cpu"]["120"]["core_id"]).to eql("1131")
-     end
+      end
 
      it "should include processor architecture" do
         expect(@plugin["cpu"]["0"]["arch"]).to eql("sparcv9")