[PATCH v4 2/9] spi: spidev_test: clarify help text for --size

[Jonas Rebmann]

It is slightly confusing that spidev_test by default transmits the
predetermined message default_tx but random bytes given the --size
parameter.

Clarify this in the help text.

While at it, make the -p help text consistently lowercase.

Signed-off-by: Jonas Rebmann <jre@xxxxxxxxxxxxxx>
---
 tools/spi/spidev_test.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/spi/spidev_test.c b/tools/spi/spidev_test.c
index bd5ee7a6ac82..f5ab67236fac 100644
--- a/tools/spi/spidev_test.c
+++ b/tools/spi/spidev_test.c
@@ -191,8 +191,8 @@ static void print_usage(const char *prog)
 		 "data:\n"
 		 "  -i --input          input data from a file (e.g. \"test.bin\")\n"
 		 "  -o --output         output data to a file (e.g. \"results.bin\")\n"
-		 "  -p                  Send data (e.g. \"1234\\xde\\xad\")\n"
-		 "  -S --size           transfer size\n"
+		 "  -p                  send data (e.g. \"1234\\xde\\xad\")\n"
+		 "  -S --size           transfer the given number of random bytes\n"
 		 "  -I --iter           iterations\n"
 		 "additional parameters:\n"
 		 "  -b --bpw            bits per word\n"

-- 
2.56.0.rc0.108.gf0ef1b96a0