uniq: support -w. closes bug 3094.

function                                             old     new   delta
packed_usage                                       24136   24132      -4
uniq_main                                            399     384     -15

1 files changed, 5 insertions, 5 deletions

diff --git a/include/usage.h b/include/usage.h
index cbc5cb0a2..e791ba6bf 100644
--- a/include/usage.h
+++ b/include/usage.h
@@ -4303,16 +4303,16 @@
         )
 
 #define uniq_trivial_usage \
-       "[-fscdu]... [INPUT [OUTPUT]]"
+       "[-fscduw]... [INPUT [OUTPUT]]"
 #define uniq_full_usage "\n\n" \
-       "Discard all but one of successive identical lines from INPUT\n" \
-       "(or standard input), writing to OUTPUT (or standard output)\n" \
+       "Discard duplicate lines\n" \
      "\nOptions:" \
      "\n        -c      Prefix lines by the number of occurrences" \
      "\n        -d      Only print duplicate lines" \
      "\n        -u      Only print unique lines" \
-     "\n        -f N    Skip the first N fields" \
-     "\n        -s N    Skip the first N chars (after any skipped fields)" \
+     "\n        -f N    Skip first N fields" \
+     "\n        -s N    Skip first N chars (after any skipped fields)" \
+     "\n        -w N    Compare N characters in line" \
 
 #define uniq_example_usage \
        "$ echo -e \"a\\na\\nb\\nc\\nc\\na\" | sort | uniq\n" \