Sync from coreutils. Use "file name" when talking about file names, instead of "filename" or "path", as per the GNU coding standards. * MODULES.html.sh: mkdir-p renamed from makepath. filenamecat renamed from path-concat. * modules/filenamecat: Renamed from modules/path-concat. (Files): filenamecat.h and filenamecat.c renamed from path-concat.h and path-concat.c. (configure.ac): gl_FILE_NAME_CONCAT, not gl_PATH_CONCAT. (Include): filenamecat.h, not path-concat.h. * modules/mkdir-p: Renamed from modules/makepath. (Files): mkdir-p.h and mkdir-p.c renamed from makepath.h and makepath.c. (configure.ac): gl_MKDIR_PARENTS, not gl_MAKEPATH. (Include): mkdir-p.h, not makepath.h. * lib/mkdir-p.c: Renamed from makepath.c. (make_dir_parents): Renamed from make_path. All callers changed. * lib/mkdir-p.h: Likewise. All includers changed. * lib/filenamecat.c: Renamed from path-concat.c. (file_name_concat): Renamed from path_concat. All callers changed. [TEST_FILE_NAME_CONCAT]: Renamed from TEST_PATH_CONCAT. * lib/filenamecat.h: Likewise. All includers changed. * lib/acl.c: Don't use "path" or "filename" to mean "file name" in comments or local variable names. * lib/basename.c: Likewise. * lib/canonicalize.c, canonicalize.h: Likewise. * lib/dirname.c, dirname.h: Likewise. * lib/euidaccess.c: Likewise. * lib/exclude.c: Likewise * lib/fnmatch_.h, fnmatch_loop.c: Likewise. * lib/fsusage.c, fsuage.h: Likewise. * lib/fts.c, fts_.h: Likewise. * lib/getcwd.c: Likewise. * lib/getloadavg.c: Likewise. * lib/mkstemp.c: Likewise. * lib/mountlist.c, mountlist.h: Likewise. * lib/openat.c, openat.h: Likewise. * lib/readlink-stub.c: Likewise. * lib/readutmp.c, readutmp.h: Likewise. * lib/rename.c: Likewise. * lib/rmdir.c: Likewise. * lib/same.c: Likewise. * lib/savedir.c: Likewise. * lib/stripslash.c: Likewise. * lib/tempname.c: Likewise. * lib/xreadlink.c: Likewise. * lib/exclude.c (excluded_file_name): Renamed from excluded_filename. All uses changed. * lib/exclude.h: Likewise. * m4/mkdir-p.m4: Renamed from makepath.m4. (gl_MKDIR_PARENTS): Renamed from gl_MAKEPATH. All uses changed. Rename files from makepath.c to mkdir-p.c, and from makepath.h to mkdir-p.h. * m4/filenamecat.m4: Renamed from path-concat.m4. (gl_FILE_NAME_CONCAT): Renamed from gl_PATH_CONCAT. All uses changed. Rename files from path-concat.c to filenamecat.c, and from path-concat.h to filenamecat.h. * m4/getcwd-path-max.m4: Don't use "path" or "filename" to mean "file name" in local variables or comments. * rename.m4: Likewise. * lib/euidaccess.c (getuid, getgid, getuid, getegid) [!defined _POSIX_VERSION]: Remove decls; not needed these days. * lib/idcache.c (getpwuid, getpwnam, getgrgid, getgrnam) [!defined _POSIX_VERSION]: Remove decls; not needed these days. * lib/pathmax.h: Include <limits.h> unconditionally, since other files have been getting away with it for years (MORE/BSD 4.3 is extinct now). * lib/userspec.c (getpwnam, getgrnam, getgrgid) [!defined _POSIX_VERSION]: Remove decls; not needed these days. * lib/pathmax.h (_POSIX_PATH_MAX) [!defined _POSIX_PATH_MAX]: Define to 256, not 255, as per modern POSIX.