better fix for gsub() on non-String values in the table. Fixes cachedump brokenness

git-svn-id: file:///home/svn/framework3/trunk@13944 4d416f70-5f16-0410-b530-b9f4589650da

lib/rex/ui/text/table.rb

@@ -121,11 +121,9 @@ class Table
 		rows.each { |row|
 			next if is_hr(row)
 			str << ( row.map{|x| 
-				if x.nil?
-					""
-				else
+				x = x.to_s
+
 				x.gsub(/[\r\n]/, ' ').gsub(/\s+/, ' ').gsub('"', '""')
-				end
 			}.map{|x| "\"#{x}\"" }.join(",") + "\n" )
 		}
 		str