coreutils: keep lines within 80-column limits

* cfg.mk (LINE_LEN_MAX, FILTER_LONG_LINES): New macros.
(sc_long_lines): New rule.
* HACKING: Use shorter URLs to the same material.
* doc/Makefile.am, doc/coreutils.texi, m4/boottime.m4:
* man/help2man, man/stdbuf.x, src/Makefile.am, src/cat.c, src/copy.c:
* src/cp.c, src/dd.c, src/df.c, src/du.c, src/groups.c, src/install.c:
* src/ls.c, src/md5sum.c, src/mv.c, src/od.c, src/pinky.c, src/ptx.c:
* src/readlink.c, src/remove.c, src/rmdir.c, src/setuidgid.c:
* src/sort.c, src/tail.c, src/touch.c, tests/Coreutils.pm:
* tests/cp/existing-perm-race, tests/cp/perm, tests/cp/preserve-gid:
* tests/du/2g, tests/du/long-from-unreadable, tests/init.sh:
* tests/install/basic-1, tests/ls/nameless-uid:
* tests/ls/readdir-mountpoint-inode, tests/misc/chroot-credentials:
* tests/misc/cut, tests/misc/date, tests/misc/join, tests/misc/md5sum:
* tests/misc/sha1sum, tests/misc/sha224sum, tests/misc/sort:
* tests/misc/sort-continue, tests/misc/sort-files0-from:
* tests/misc/sort-rand, tests/misc/stdbuf, tests/misc/tr:
* tests/misc/uniq, tests/mv/atomic, tests/mv/part-fail:
* tests/mv/part-symlink, tests/mv/sticky-to-xpart, tests/pr/pr-tests:
* tests/rm/fail-2eperm, tests/rm/interactive-always:
Reformat to fit within 80 columns.
* doc/Makefile.am (BAD_POSIX_PERL): New macro.
* doc/coreutils.texi: Reword slightly, to make menus and
index lines shorter.
* src/md5sum.c: Redo --help output so that it fits within 79
columns, since that's a bit more portable and all the other --help
strings fit in 79 columns.

1 files changed, 12 insertions, 7 deletions

diff --git a/src/cp.c b/src/cp.c
index 3d00b5f7f..c103a82a9 100644
--- a/src/cp.c
+++ b/src/cp.c
@@ -170,16 +170,19 @@ Mandatory arguments to long options are mandatory for short options too.\n\
       fputs (_("\
   -a, --archive                same as -dR --preserve=all\n\
       --attributes-only        don't copy the file data, just the attributes\n\
-      --backup[=CONTROL]       make a backup of each existing destination file\n\
+      --backup[=CONTROL]       make a backup of each existing destination file\
+\n\
   -b                           like --backup but does not accept an argument\n\
       --copy-contents          copy contents of special files when recursive\n\
   -d                           same as --no-dereference --preserve=links\n\
 "), stdout);
       fputs (_("\
   -f, --force                  if an existing destination file cannot be\n\
-                                 opened, remove it and try again (redundant if\n\
+                                 opened, remove it and try again (redundant if\
+\n\
                                  the -n option is used)\n\
-  -i, --interactive            prompt before overwrite (overrides a previous -n\n\
+  -i, --interactive            prompt before overwrite (overrides a previous -n\
+\n\
                                   option)\n\
   -H                           follow command-line symbolic links in SOURCE\n\
 "), stdout);
@@ -196,7 +199,8 @@ Mandatory arguments to long options are mandatory for short options too.\n\
   -p                           same as --preserve=mode,ownership,timestamps\n\
       --preserve[=ATTR_LIST]   preserve the specified attributes (default:\n\
                                  mode,ownership,timestamps), if possible\n\
-                                 additional attributes: context, links, xattr,\n\
+                                 additional attributes: context, links, xattr,\
+\n\
                                  all\n\
 "), stdout);
       fputs (_("\
@@ -207,8 +211,8 @@ Mandatory arguments to long options are mandatory for short options too.\n\
   -R, -r, --recursive          copy directories recursively\n\
       --reflink[=WHEN]         control clone/CoW copies. See below\n\
       --remove-destination     remove each existing destination file before\n\
-                                 attempting to open it (contrast with --force)\n\
-"), stdout);
+                                 attempting to open it (contrast with --force)\
+\n"), stdout);
       fputs (_("\
       --sparse=WHEN            control creation of sparse files. See below\n\
       --strip-trailing-slashes  remove any trailing slashes from each SOURCE\n\
@@ -948,7 +952,8 @@ main (int argc, char **argv)
                                        reflink_type_string, reflink_type);
           break;
 
-        case 'a':		/* Like -dR --preserve=all with reduced failure diagnostics. */
+        case 'a':
+          /* Like -dR --preserve=all with reduced failure diagnostics.  */
           x.dereference = DEREF_NEVER;
           x.preserve_links = true;
           x.preserve_ownership = true;