Generate alf usage from rst.

1 files changed, 7 insertions, 2 deletions

diff --git a/src/alf.c b/src/alf.c
index 3492720..d294378 100644
--- a/src/alf.c
+++ b/src/alf.c
@@ -335,11 +335,16 @@ void crunch_file(const char *filename) {
 }
 
 void usage(void) {
+	extern char *usage_msg[];
+	char **line;
+
 	puts("alf (ALF compressor) v" VERSION " by B. Watson, WTFPL.");
 	printf("Usage: %s [-a|-o] archive.alf file [file ...]\n", self);
 	puts("Options:");
-	puts("  -a: append to archive");
-	puts("  -o: overwrite archive (don't make backup with ~)");
+
+	for(line = usage_msg; *line; line++)
+		puts(*line);
+
 	exit(0);
 }