* sample/exyacc.rb: Fix typo in a variable name

s/grammer/grammar/

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44240 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

sample/exyacc.rb

@@ -5,16 +5,16 @@
 ARGF.each(nil) do |source|
   sbeg = source.index("\n%%") + 1
   send = source.rindex("\n%%") + 1
-  grammer = source[sbeg, send-sbeg]
-  grammer.sub!(/.*\n/, "")
-  grammer.gsub!(/'\{'/, "'\001'")
-  grammer.gsub!(/'\}'/, "'\002'")
-  grammer.gsub!(%r{\*/}, "\003\003")
-  grammer.gsub!(%r{/\*[^\003]*\003\003}, '')
-  while grammer.gsub!(/\{[^{}]*\}/, ''); end
-  grammer.gsub!(/'\001'/, "'{'")
-  grammer.gsub!(/'\002'/, "'}'")
-  while grammer.gsub!(/^[ \t]*\n(\s)/, '\1'); end
-  grammer.gsub!(/([:|])[ \t\n]+(\w)/, '\1 \2')
-  print grammer
+  grammar = source[sbeg, send-sbeg]
+  grammar.sub!(/.*\n/, "")
+  grammar.gsub!(/'\{'/, "'\001'")
+  grammar.gsub!(/'\}'/, "'\002'")
+  grammar.gsub!(%r{\*/}, "\003\003")
+  grammar.gsub!(%r{/\*[^\003]*\003\003}, '')
+  while grammar.gsub!(/\{[^{}]*\}/, ''); end
+  grammar.gsub!(/'\001'/, "'{'")
+  grammar.gsub!(/'\002'/, "'}'")
+  while grammar.gsub!(/^[ \t]*\n(\s)/, '\1'); end
+  grammar.gsub!(/([:|])[ \t\n]+(\w)/, '\1 \2')
+  print grammar
 end