Some simple ruby convention changes that hopefully make ruby people happy

Author: floyd-fuh

lib/msf/core/exploit/tincd.rb

@@ -134,9 +134,7 @@ def init_ciphers(server_file, client_file)
   # from the server, this method will decide which message has to be sent next
   #
   def process_data(data)
-    unless data.nil?
-      @inbuffer += data
-    end
+    @inbuffer += data if data
     case @state
     when :id_state
       if line?
@@ -262,15 +260,15 @@ def read_line
     idx = @inbuffer.index("\n")
     data = @inbuffer.slice!(0, idx)
     @inbuffer.lstrip!
-    return data
+    data
   end
 
   #
   # Check if we already received a newline, meaning we got an
   # entire message for the next protocol step
   #
   def line?
-    !@inbuffer.match("\n").nil?
+    !!(@inbuffer.match("\n"))
   end
 
   #