X-Git-Url: https://jxself.org/git/?a=blobdiff_plain;f=tfc_error.c;h=a40ab0ae9bfed2aa8a2a9bc56eefc126444fe0a1;hb=c0dc5614a87ed6d0eed4906447171ef4c73b306e;hp=905ae40213bb501be0089218718f38ed261cb0af;hpb=0303cbcec2b262cc3dcf8d89951967d7ba9543c7;p=tfcrypt.git

diff --git a/tfc_error.c b/tfc_error.c
index 905ae40..a40ab0a 100644
--- a/tfc_error.c
+++ b/tfc_error.c
@@ -266,6 +266,7 @@ void usage(void)
 	tfc_say("    oseek=val: seek destination file/device by these val bytes.");
 	tfc_say("    count=val: process only these val bytes, both input and output.");
 	tfc_say("    ftrunc=val: truncate output file to these val bytes before closing it.");
+	tfc_say("    ftrunc=tail: truncate output's tail, leaving only processed data.");
 	tfc_say("    xkey=val: take only val bytes from user keyfile.");
 	tfc_say("    okey=val: seek the key before reading it (usually a device).");
 	tfc_say("    xctr=val: specify size in bytes of initial counter prepended or read.");