-f was replaced by -o, follow through.

1 files changed, 1 insertions, 1 deletions

diff --git a/gpspipe.c b/gpspipe.c
index 86bda7f9..4a3bf910 100644
--- a/gpspipe.c
+++ b/gpspipe.c
@@ -151,7 +151,7 @@ static void usage(void)
 		  "-v Print a little spinner.\n"
 		  "-V Print version and exit.\n\n"
 		  "You must specify one, or both, of -r/-w.\n"
-		  "You must use -f if you use -d.\n");
+		  "You must use -o if you use -d.\n");
 }
 
 /*@ -compdestroy @*/