rubystyle: use Ruby 1.9 hash literal style

Author: kjetilho

lib/puppet/parser/functions/pw_hash.rb

@@ -49,13 +49,13 @@
   end
 
   hashes = {
-    'md5'       => { :prefix => '1' },
-    'sha-256'   => { :prefix => '5' },
-    'sha-512'   => { :prefix => '6' },
-    'bcrypt'    => { :prefix => '2b', :salt => %r{^[0-9]{2}\$[./A-Za-z0-9]{22}} },
-    'bcrypt-a'  => { :prefix => '2a', :salt => %r{^[0-9]{2}\$[./A-Za-z0-9]{22}} },
-    'bcrypt-x'  => { :prefix => '2x', :salt => %r{^[0-9]{2}\$[./A-Za-z0-9]{22}} },
-    'bcrypt-y'  => { :prefix => '2y', :salt => %r{^[0-9]{2}\$[./A-Za-z0-9]{22}} },
+    'md5'       => { prefix: '1' },
+    'sha-256'   => { prefix: '5' },
+    'sha-512'   => { prefix: '6' },
+    'bcrypt'    => { prefix: '2b', salt: %r{^[0-9]{2}\$[./A-Za-z0-9]{22}} },
+    'bcrypt-a'  => { prefix: '2a', salt: %r{^[0-9]{2}\$[./A-Za-z0-9]{22}} },
+    'bcrypt-x'  => { prefix: '2x', salt: %r{^[0-9]{2}\$[./A-Za-z0-9]{22}} },
+    'bcrypt-y'  => { prefix: '2y', salt: %r{^[0-9]{2}\$[./A-Za-z0-9]{22}} },
   }
 
   raise ArgumentError, 'pw_hash(): first argument must be a string' unless args[0].is_a?(String) || args[0].nil?