force no-tab/trailing spaces with git hook

Remove unneeded stuff from pre-commit script

The check against an empty commit was not needed (it is only a security for the 1st commit after git init).
It could also possibly pose problems because of the redirection to /dev/null on some windows systems.

newline at EOF & fixed indent

CMakeLists.txt

@@ -4,6 +4,13 @@ cmake_minimum_required(VERSION 2.8.11)
 
 project(citra)
 
+if(NOT EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/.git/hooks/pre-commit)
+    message(STATUS "Copying pre-commit hook")
+    file(COPY hooks/pre-commit
+        DESTINATION ${CMAKE_CURRENT_SOURCE_DIR}/.git/hooks
+        FILE_PERMISSIONS WORLD_EXECUTE )
+endif()
+
 if (NOT MSVC)
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -Wno-attributes -pthread")
     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -pthread")