bc: tweak help text

-v is supported but not shown

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 11 insertions, 4 deletions

diff --git a/miscutils/bc.c b/miscutils/bc.c
index 78c64355b..4257511f0 100644
--- a/miscutils/bc.c
+++ b/miscutils/bc.c
@@ -114,12 +114,19 @@
 //kbuild:lib-$(CONFIG_BC) += bc.o
 //kbuild:lib-$(CONFIG_DC) += bc.o
 
+//See www.gnu.org/software/bc/manual/bc.html
 //usage:#define bc_trivial_usage
-//usage:       "EXPRESSION...\n"
-//usage:       "function_definition\n"
+//usage:       "[-sqli] FILE..."
 //usage:
-//usage:#define bc_full_usage "\n\n"
-//usage:       "See www.gnu.org/software/bc/manual/bc.html\n"
+//usage:#define bc_full_usage "\n"
+//usage:     "\nArbitrary precision calculator"
+//usage:     "\n"
+//usage:     "\n        -i      Interactive"
+//usage:     "\n        -l      Load standard math library"
+//usage:     "\n        -s      Be POSIX compatible"
+//usage:     "\n        -q      Quiet"
+//usage:     "\n        -w      Warn if extensions are used"
+///////:     "\n        -v      Version"
 //usage:
 //usage:#define bc_example_usage
 //usage:       "3 + 4.129\n"