CMakeLists.txt does not detect OpenSUSE correctly

[trel]

INFO -   stderr: Traceback (most recent call last):
  File "<string>", line 1, in <module>
IndexError: list index out of range
CMake Error at CMakeLists.txt:53 (message):
  Linux platform name detection failed

  1
INFO - 
ERROR - build failed

tripping up because MUNGEFS_LINUX_DISTRIBUTION_NAME is empty...

mungefs/CMakeLists.txt

Lines 46 to 57 in 7bb18e7

	if (NOT MUNGEFS_LINUX_DISTRIBUTION_NAME)
	execute_process(
	COMMAND "python" "-c" "from __future__ import print_function; import platform; print(platform.linux_distribution()[0].split()[0].strip().lower(), end='')"
	RESULT_VARIABLE MUNGEFS_EXECUTE_PROCESS_RESULT_LINUX_DISTRIBUTION_NAME
	OUTPUT_VARIABLE MUNGEFS_LINUX_DISTRIBUTION_NAME
	)
	if (NOT ${MUNGEFS_EXECUTE_PROCESS_RESULT_LINUX_DISTRIBUTION_NAME} STREQUAL "0")
	message(FATAL_ERROR "Linux platform name detection failed\n${MUNGEFS_EXECUTE_PROCESS_RESULT_LINUX_DISTRIBUTION_NAME}")
	endif()
	set(MUNGEFS_LINUX_DISTRIBUTION_NAME ${MUNGEFS_LINUX_DISTRIBUTION_NAME} CACHE STRING "Linux distribution name, e.g. {ubuntu, centos, ...}." FORCE)
	message(STATUS "Setting unspecified MUNGEFS_LINUX_DISTRIBUTION_NAME to '${MUNGEFS_LINUX_DISTRIBUTION_NAME}'")
	endif()

opensuse can use the distro module rather than platform