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-rw-r--r--libshouldbeinlibc/argp.h7
1 files changed, 5 insertions, 2 deletions
diff --git a/libshouldbeinlibc/argp.h b/libshouldbeinlibc/argp.h
index e944553e..3c41731e 100644
--- a/libshouldbeinlibc/argp.h
+++ b/libshouldbeinlibc/argp.h
@@ -173,12 +173,15 @@ struct argp
argp_parser_t parser;
/* A string describing what other arguments are wanted by this program. It
- is only used by argp_usage to print the `Usage:' message. */
+ is only used by argp_usage to print the `Usage:' message. If it
+ contains newlines, the strings separated by them are considered
+ alternative usage patterns, and printed on separate lines (lines after
+ the first are prefix by ` or: ' instead of `Usage:'). */
__const char *args_doc;
/* If non-NULL, a string containing extra text to be printed before and
after the options in a long help message (separated by a vertical tab
- `\v' character). */
+ `\v' character). */
__const char *doc;
/* A vector of argp_children structures, terminated by a member with a 0