Switch alias to alias_method

lib/logging/appenders/string_io.rb

@@ -57,7 +57,7 @@ def clear
         @sio.truncate 0
       }
     end
-    alias :reset :clear
+    alias_method :reset, :clear
 
     %w[read readline readlines].each do|m|
       class_eval <<-CODE, __FILE__, __LINE__+1

lib/logging/diagnostic_context.rb

@@ -289,7 +289,7 @@ def push( message )
       end
       self
     end
-    alias :<< :push
+    alias_method :<<, :push
 
     # Public: Clients should call this method before leaving a diagnostic
     # context. The returned value is the last pushed message. If no
@@ -405,7 +405,7 @@ class << self
 
     %w[new start fork].each do |m|
       class_eval <<-__, __FILE__, __LINE__
-        alias :_orig_#{m} :#{m}
+        alias_method :_orig_#{m}, :#{m}
         private :_orig_#{m}
         def #{m}( *a, &b )
           create_with_logging_context(:_orig_#{m}, *a ,&b)

lib/logging/logger.rb

@@ -58,7 +58,7 @@ def new( *args )
           logger
         end
       end
-      alias :[] :new
+      alias_method :[], :new
 
       # This is where the actual logging methods are defined. Two methods
       # are created for each log level. The first is a query method used to
@@ -170,7 +170,7 @@ def <<( msg )
       @appenders.each {|a| a << msg}
       @parent << msg if @additive
     end
-    alias :write :<<
+    alias_method :write, :<<
 
     # call-seq:
     #    add( severity, message = nil ) {block}

lib/logging/utils.rb

@@ -150,7 +150,7 @@ def initialize
     @locker = nil
   end
 
-  alias :original_synchronize :synchronize
+  alias_method :original_synchronize, :synchronize
 
   def synchronize
     if @locker == Thread.current