Merge branch 'master' of https://gitlab.redox-os.org/redox-os/relibc

include/sys/user.h

src/header/arch_aarch64_user/cbindgen.toml

src/header/arch_aarch64_user/mod.rs

src/header/arch_x64_user/cbindgen.toml

src/header/arch_x64_user/mod.rs

src/header/mod.rs

src/header/stdio/printf.rs

src/header/sys_procfs/cbindgen.toml

src/header/sys_procfs/mod.rs

src/header/wchar/mod.rs

src/header/wctype/casecmp.rs

src/header/wctype/cbindgen.toml

src/header/wctype/mod.rs

src/ld_so/debug.rs

src/ld_so/linker.rs

tests/Makefile

tests/error.c

tests/expected/stdio/printf_space_pad.stderr

tests/expected/stdio/printf_space_pad.stdout

tests/expected/wchar/wcscasecmp.stderr