Apply manual corrections

Author: andyundso

lib/tiny_tds.rb

@@ -25,7 +25,7 @@
   end
 
   add_dll_paths = proc do |paths, &block|
-    if path = paths.shift
+    if (path = paths.shift)
       add_dll_path.call(path) do
         add_dll_paths.call(paths, &block)
       end

test/thread_test.rb

@@ -46,7 +46,7 @@ class ThreadTest < TinyTds::TestCase
           @pool.with do |client|
             result = client.execute "select dbname()"
             result.each { |r| puts r }
-          rescue Exception => _e
+          rescue => _e
             # We are throwing an error on purpose here since 0.6.1 would
             # segfault on errors thrown in threads
           end