VM: Re-format to use at most one newline between functions

runtime/bin/extensions_linux.cc

Index: runtime/bin/extensions_linux.cc
diff --git a/runtime/bin/extensions_linux.cc b/runtime/bin/extensions_linux.cc
index 70eb6482c297754e10f6fbba462cfc604e7a5165..d8972a768f9ec7cf9c0a1bccdfac3ea26b9f8c81 100644
--- a/runtime/bin/extensions_linux.cc
+++ b/runtime/bin/extensions_linux.cc
@@ -5,8 +5,8 @@
 #include "platform/globals.h"
 #if defined(HOST_OS_LINUX)
 
-#include "bin/extensions.h"
 #include <dlfcn.h>  // NOLINT
+#include "bin/extensions.h"
 
 #include "platform/assert.h"
 
@@ -23,20 +23,17 @@ void* Extensions::LoadExtensionLibrary(const char* library_file) {
   return dlopen(library_file, RTLD_LAZY);
 }
 
-
 void* Extensions::ResolveSymbol(void* lib_handle, const char* symbol) {
   dlerror();
   return dlsym(lib_handle, symbol);
 }
 
-
 void Extensions::UnloadLibrary(void* lib_handle) {
   dlerror();
   int result = dlclose(lib_handle);
   ASSERT(result == 0);
 }
 
-
 Dart_Handle Extensions::GetError() {
   const char* err_str = dlerror();
   if (err_str != NULL) {