Added the end statements for the two new if statmeents

Did not know ends were required on one-liner ifs. Fixed.

lib/linguist/heuristics.rb

@@ -39,9 +39,11 @@ module Linguist
       matches = []
       if (/@(interface|class|protocol|synchronised|selector|implementation)/.match(data))
         matches << Language["Objective-C"]
+      end
       if (/^\s*#\s*include <(cstdint|string|vector|map|list|array|bitset|queue|stack|forward_list|unordered_map|unordered_set)>$/.match(data) or
           /template\s*</.match(data) or /[^@]class/.match(data))
         matches << Language["C++"]
+      end
       matches
     end