Remove trailing spaces [ci skip]

ext/openssl/lib/openssl/buffering.rb

@@ -31,7 +31,7 @@ module OpenSSL::Buffering
 
       force_encoding(BINARY)
     end
-    
+
     def << string
       if string.encoding == BINARY
         super(string)

ext/openssl/lib/openssl/ssl.rb

@@ -236,7 +236,7 @@ YoaOffgTf5qxiwkjnlVZQc3whgnEt9FpVMvQ9eknyeGB5KHfayAc3+hUAvI3/Cr3
       def fileno
         to_io.fileno
       end
-      
+
       def addr
         to_io.addr
       end

io.c

@@ -1293,7 +1293,7 @@ rb_io_wait_writable(int f)
         VALUE result = rb_funcall(scheduler, rb_intern("wait_writable_fd"), 1, INT2NUM(f));
         return RTEST(result);
     }
-    
+
     io_fd_check_closed(f);
     switch (errno) {
       case EINTR:

test/fiber/test_io.rb

@@ -39,14 +39,14 @@ class TestFiberIO < Test::Unit::TestCase
     assert_predicate(i, :closed?)
     assert_predicate(o, :closed?)
   end
-  
+
   def test_heavy_read
     skip unless defined?(UNIXSocket)
 
     16.times.map do
       thread = Thread.new do
         i, o = UNIXSocket.pair
-        
+
         scheduler = Scheduler.new
         Thread.current.scheduler = scheduler
 

variable.c

@@ -755,7 +755,7 @@ VALUE
 rb_gv_get(const char *name)
 {
     ID id = find_global_id(name);
-    
+
     if (!id) {
         rb_warning("global variable `%s' not initialized", name);
         return Qnil;