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-rw-r--r--include/usage.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/usage.h b/include/usage.h
index bb814f1f8..543befca3 100644
--- a/include/usage.h
+++ b/include/usage.h
@@ -927,7 +927,7 @@ USE_FEATURE_DATE_ISOFMT( \
"\t-H login_host\tLog login_host into the utmp file as the hostname"
#define grep_trivial_usage \
- "[-ihHnqvs" \
+ "[-ihHnqvso" \
USE_FEATURE_GREP_EGREP_ALIAS("E") \
USE_FEATURE_GREP_CONTEXT("ABC") \
"] PATTERN [FILEs...]"
@@ -945,6 +945,7 @@ USE_FEATURE_DATE_ISOFMT( \
"\t-s\tsuppress file open/read error messages\n" \
"\t-c\tonly print count of matching lines\n" \
"\t-f\tread PATTERN from file\n" \
+ "\t-o\tshow only the part of a line that matches PATTERN\n" \
"\t-e\tPATTERN is a regular expression\n" \
"\t-F\tPATTERN is a set of newline-separated strings" \
USE_FEATURE_GREP_EGREP_ALIAS("\n\t-E\tPATTERN is an extended regular expression") \