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-rw-r--r--src/comm.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/comm.c b/src/comm.c
index 1df70a574..ad980d7e5 100644
--- a/src/comm.c
+++ b/src/comm.c
@@ -255,6 +255,7 @@ Usage: %s [OPTION]... LEFT_FILE RIGHT_FILE\n\
",
program_name);
printf ("\
+Compare sorted files LEFT_FILE and RIGHT_FILE line by line.\n\
\n\
-1 suppress lines unique to left file\n\
-2 suppress lines unique to right file\n\