CMake: Fix building w/o FindGit

build_files/cmake/buildinfo.cmake

@@ -10,7 +10,7 @@ set(MY_WC_COMMIT_TIMESTAMP 0)
 # Guess if this is a git working copy and then look up the revision
 if(EXISTS ${SOURCE_DIR}/.git)
 	# The FindGit.cmake module is part of the standard distribution
-	include(FindGit)
+	find_package(Git)
 	if(GIT_FOUND)
 		message(STATUS "-- Found Git: ${GIT_EXECUTABLE}")
 

build_files/cmake/packaging.cmake

@@ -21,7 +21,7 @@ SET(CPACK_PACKAGE_VERSION_PATCH "${PATCH_VERSION}")
 # Get the build revision, note that this can get out-of-sync, so for packaging run cmake first.
 set(MY_WC_HASH "unknown")
 if(EXISTS ${CMAKE_SOURCE_DIR}/.git/)
-	include(FindGit)
+	find_package(Git)
 	if(GIT_FOUND)
 		message(STATUS "-- Found Git: ${GIT_EXECUTABLE}")
 		execute_process(COMMAND git rev-parse --short HEAD