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-rw-r--r--doc/coreutils.texi4
1 files changed, 3 insertions, 1 deletions
diff --git a/doc/coreutils.texi b/doc/coreutils.texi
index 229154281..3a04176c7 100644
--- a/doc/coreutils.texi
+++ b/doc/coreutils.texi
@@ -3137,7 +3137,9 @@ prints both the byte counts and the word counts.
With the @option{--max-line-length} option, @command{wc} prints the length
of the longest line per file, and if there is more than one file it
-prints the maximum (not the sum) of those lengths.
+prints the maximum (not the sum) of those lengths. The line lengths here
+are measured in screen columns, according to the current locale and
+assuming tab positions in every 8th column.
The program accepts the following options. Also see @ref{Common options}.