factorial: Fix usage message to fit in with conventions.

diff --git a/factorial.c b/factorial.c
index 54b9845694cf8dbc172a1c7294224843167afbbe..396e6e19f60cd722dfef4d37c7c9dbbda81eb6ac 100644 (file)
--- a/factorial.c
+++ b/factorial.c
@@ -48,7 +48,7 @@
 
 static void usage(FILE *fp)
 {
-  pquis(fp, "Usage: $ [-r radix] integer\n");
+  pquis(fp, "Usage: $ [-r RADIX] INTEGER\n");
 }
 
 static void version(FILE *fp)