don't add Msf prefix if it's already there, i.e. we already fixed this file

git-svn-id: file:///home/svn/framework3/trunk@5743 4d416f70-5f16-0410-b530-b9f4589650da

tools/convert_31.rb

@@ -12,7 +12,11 @@ data.each_line do |line|
 	end
 
 	if(line =~ /^(\s*)include (.*)/)
-		line = "#{$1}include Msf::#{$2.strip}\n"
+		spaces = $1
+		inc = $2
+		if (inc !~ /Msf/)
+			line = "#{spaces}include Msf::#{inc.strip}\n"
+		end
 	end
 		
 	if(line =~ /^(\s*)class ([^\<]+)\s*<\s*(.*)/)