bpo-11681: Document the `-b` and `-bb` options (GH-1562)
diff --git a/Modules/main.c b/Modules/main.c
index 73e87e0..a6edf82 100644
--- a/Modules/main.c
+++ b/Modules/main.c
@@ -62,6 +62,8 @@
/* Long usage message, split into parts < 512 bytes */
static char *usage_1 = "\
Options and arguments (and corresponding environment variables):\n\
+-b : issue warnings about comparing bytearray with unicode\n\
+ (-bb: issue errors)\n\
-B : don't write .py[co] files on import; also PYTHONDONTWRITEBYTECODE=x\n\
-c cmd : program passed in as string (terminates option list)\n\
-d : debug output from parser; also PYTHONDEBUG=x\n\