doc: clarify field delimiter description in uniq --help output

* src/uniq.c: Clarify in help output that field delimiters are
blanks and not the larger set of whitespace characters.

diff --git a/src/uniq.c b/src/uniq.c
index b167bbb..ce883d7 100644 (file)
--- a/src/uniq.c
+++ b/src/uniq.c
@@ -165,8 +165,8 @@ Mandatory arguments to long options are mandatory for short options too.\n\
      fputs (VERSION_OPTION_DESCRIPTION, stdout);
      fputs (_("\
 \n\
-A field is a run of whitespace, then non-whitespace characters.\n\
-Fields are skipped before chars.\n\
+A field is a run of blanks (usually spaces and/or TABs), then non-blank\n\
+characters.  Fields are skipped before chars.\n\
 "), stdout);
      fputs (_("\
 \n\