wip cmake

CMakeLists.txt

-# Copyright(c) 2019 spdlog
+# Copyright(c) 2019 spdlog authors
 # Distributed under the MIT License (http://opensource.org/licenses/MIT)
 
 cmake_minimum_required(VERSION 3.1)
@@ -53,7 +53,6 @@ option(SPDLOG_BUILD_TESTS "Build tests" ${SPDLOG_MASTER_PROJECT})
 option(SPDLOG_FMT_EXTERNAL "Use external fmt library instead of bundled" OFF)
 option(SPDLOG_INSTALL "Generate the install target." ${SPDLOG_MASTER_PROJECT})
 
-
 if(SPDLOG_STATIC_LIB)
     add_definitions(-DSPDLOG_STATIC_LIB)
     file(GLOB SRC_FILES ${HEADER_BASE}/impl/*.cpp)