Make duplicate warning checks file and line specific
-rw-r--r-- 28 .gitattributes
-rw-r--r-- 1297 .gitignore
-rw-r--r-- 2087 .mailmap
-rw-r--r-- 722 .travis.yml
-rw-r--r-- 8482 CMakeLists.txt
-rw-r--r-- 21136 README.txt
drwxr-xr-x - build
drwxr-xr-x - builtin
drwxr-xr-x - client
drwxr-xr-x - cmake
drwxr-xr-x - doc
drwxr-xr-x - fonts
drwxr-xr-x - games
-rw-r--r-- 18346 minetest.conf.example
drwxr-xr-x - misc
drwxr-xr-x - mods
drwxr-xr-x - po
drwxr-xr-x - src
drwxr-xr-x - textures
drwxr-xr-x - util