fixed program usage text

diff --git a/src/main.c b/src/main.c
index a4c95d26d0cabc1219aabfc2b98624155df29c2b..b72a521ca7588a236d1c112e457048071ef1b421 100644 (file)
--- a/src/main.c
+++ b/src/main.c
@@ -7710,7 +7710,7 @@ static void print_usage(void)
        "\n"
        "Options:\n"
        "  -b, --basepath DIRECTORY         alternative base DIRECTORY\n"
-       "  -l, --level DIRECTORY            alternative level DIRECTORY\n"
+       "  -l, --levels DIRECTORY           alternative levels DIRECTORY\n"
        "  -g, --graphics DIRECTORY         alternative graphics DIRECTORY\n"
        "  -s, --sounds DIRECTORY           alternative sounds DIRECTORY\n"
        "  -m, --music DIRECTORY            alternative music DIRECTORY\n"