lib/test_bitmap: fix comment about this file

This test case file is about bitmap API, and not printf() facility.

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Andy Shevchenko <[email protected]>
Acked-by: Linus Walleij <[email protected]>
Cc: Bartosz Golaszewski <[email protected]>
Cc: Geert Uytterhoeven <[email protected]>
Cc: Marek Vasut <[email protected]>
Cc: Rasmus Villemoes <[email protected]>
Cc: Thomas Petazzoni <[email protected]>
Cc: William Breathitt Gray <[email protected]>
Cc: Yury Norov <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

lib/test_bitmap.c

@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /*
- * Test cases for printf facility.
+ * Test cases for bitmap API.
  */
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt