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, 6 insertions, 3 deletions

diff --git a/doc/Makefile.am b/doc/Makefile.am
index d627b630e..5240f0358 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -33,7 +33,8 @@ constants.texi: $(top_srcdir)/src/tail.c $(top_srcdir)/src/shred.c
 	$(AM_V_GEN)LC_ALL=C; export LC_ALL; \
 	{ sed -n -e 's/^#define \(DEFAULT_MAX[_A-Z]*\) \(.*\)/@set \1 \2/p' \
 	    $(top_srcdir)/src/tail.c && \
-	  sed -n -e 's/.*\(DEFAULT_PASSES\)[ =]* \([0-9]*\).*/@set SHRED_\1 \2/p'\
+	  sed -n -e \
+	      's/.*\(DEFAULT_PASSES\)[ =]* \([0-9]*\).*/@set SHRED_\1 \2/p'\
 	    $(top_srcdir)/src/shred.c; } > t-$@ \
 	  && mv t-$@ $@
 
@@ -60,6 +61,7 @@ syntax_checks =		\
 .PHONY: $(syntax_checks) check-texinfo
 
 # List words/regexps here that should not appear in the texinfo documentation.
+BAD_POSIX_PERL = /\bPOSIX\b/ && !/\@acronym{POSIX}/ && !/^\* / || /{posix}/
 check-texinfo: $(syntax_checks)
 	$(AM_V_GEN)fail=0;						\
 	grep '@url{' $(srcdir)/*.texi && fail=1;			\
@@ -69,7 +71,7 @@ check-texinfo: $(syntax_checks)
 	    | $(EGREP) -v 'setfilename|[{]filename[}]'			\
 	  && fail=1;							\
 	$(PERL) -e 1 2> /dev/null && { $(PERL) -ne			\
-	  '/\bPOSIX\b/ && !/\@acronym{POSIX}/ && !/^\* / || /{posix}/ and print,exit 1' \
+	  '$(BAD_POSIX_PERL) and print,exit 1'				\
 	  $(srcdir)/*.texi 2> /dev/null || fail=1; };			\
 	exit $$fail
 
@@ -108,7 +110,8 @@ sc-avoid-non-zero:
 
 # Use `zeros', not `zeroes' (nothing wrong with `zeroes'. just be consistent).
 sc-avoid-zeroes:
-	$(AM_V_GEN)$(EGREP) -i '$(_W)zeroes$(W_)' $(srcdir)/*.texi && exit 1 || :
+	$(AM_V_GEN)$(EGREP) -i '$(_W)zeroes$(W_)' $(srcdir)/*.texi \
+	  && exit 1 || :
 
 # ME = $(subdir)/$(word $(words $(MAKEFILE_LIST)),$(MAKEFILE_LIST))
 ME = doc/Makefile