Re: sort -b also ignores tabs

[Paul Eggert]

Thanks, I installed this:

2005-12-29  Paul Eggert  <address@hidden>

        * doc/coreutils.texi (sort invocation): Clarify that a blank
        is a space or a tab.

--- doc/coreutils.texi  17 Dec 2005 10:50:00 -0000      1.302
+++ doc/coreutils.texi  29 Dec 2005 21:45:32 -0000      1.303
@@ -3278,7 +3278,8 @@ so portable shell scripts should specify
 @cindex blanks, ignoring leading
 @vindex LC_CTYPE
 Ignore leading blanks when finding sort keys in each line.
-The @env{LC_CTYPE} locale determines character types.
+By default a blank is a space or a tab, but the @env{LC_CTYPE} locale
+can change this.
 
 @item -d
 @itemx --dictionary-order
@@ -3290,7 +3291,8 @@ The @env{LC_CTYPE} locale determines cha
 @vindex LC_CTYPE
 Sort in @dfn{phone directory} order: ignore all characters except
 letters, digits and blanks when sorting.
-The @env{LC_CTYPE} locale determines character types.
+By default letters and digits are those of @acronym{ASCII} and a blank
+is a space or a tab, but the @env{LC_CTYPE} locale can change this.
 
 @item -f
 @itemx --ignore-case
@@ -3358,6 +3360,8 @@ by a month name abbreviation, is folded 
 compared in the order @samp{JAN} < @samp{FEB} < @dots{} < @samp{DEC}.
 Invalid names compare low to valid names.  The @env{LC_TIME} locale
 category determines the month spellings.
+By default a blank is a space or a tab, but the @env{LC_CTYPE} locale
+can change this.
 
 @item -n
 @itemx --numeric-sort
@@ -3371,6 +3375,8 @@ digits possibly separated by thousands s
 by a decimal-point character and zero or more digits.  A string of
 no digits is interpreted as @samp{0}.  The @env{LC_NUMERIC}
 locale specifies the decimal-point character and thousands separator.
+By default a blank is a space or a tab, but the @env{LC_CTYPE} locale
+can change this.
 
 Numeric sort uses what might be considered an unconventional method to
 compare strings representing floating point numbers.  Rather than first
@@ -3482,6 +3488,9 @@ than @var{size}.
 Use character @var{separator} as the field separator when finding the
 sort keys in each line.  By default, fields are separated by the empty
 string between a non-blank character and a blank character.
+By default a blank is a space or a tab, but the @env{LC_CTYPE} locale
+can change this.
+
 That is, given the input line @address@hidden foo bar}}, @command{sort} breaks 
it
 into fields @address@hidden foo}} and @address@hidden bar}}.  The field 
separator is
 not considered to be part of either the field preceding or the field