Programs may use usage_msg_opt() to print a brief message
followed by the program usage, and then exit. The message
isn't prefixed at all, though, so it doesn't match our usual
error output and is easy to overlook:
$ git clone 1 2 3
Too many arguments.
usage: git clone [<options>] [--] <repo> [<dir>]
-v, --verbose be more verbose
-q, --quiet be more quiet
--progress force progress reporting
-n, --no-checkout don't create a checkout
--bare create a bare repository
[...and so on for another 31 lines...]
It looks especially bad when the message starts with an
option, like:
$ git replace -e
-e needs exactly one argument
usage: git replace [-f] <object> <replacement>
or: git replace [-f] --edit <object>
[...etc...]
Let's put our usual "fatal:" prefix in front of it.
Signed-off-by: Jeff King <peff@xxxxxxxx>
---
Some of the message in git-clone could stand to be rewritten to match
our usual style, too (no capitals, no trailing period), but that's
obviously out of scope for this patch. I don't think this change makes
them look any worse.
parse-options.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/parse-options.c b/parse-options.c
index 312a85dbd..4fbe924a5 100644
--- a/parse-options.c
+++ b/parse-options.c
@@ -661,7 +661,7 @@ void NORETURN usage_msg_opt(const char *msg,
const char * const *usagestr,
const struct option *options)
{
- fprintf(stderr, "%s\n\n", msg);
+ fprintf(stderr, "fatal: %s\n\n", msg);
usage_with_options(usagestr, options);
}
--
2.11.0.341.g202cd3142