lib/test-string_helpers: print flags in hexadecimal format

Since flags are bitmapped, it's better to print them in hexadecimal
format.

Link: https://lkml.kernel.org/r/20210504180819.73127-8-andriy.shevchenko@linux.intel.comSigned-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Chuck Lever <chuck.lever@oracle.com>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

lib/test-string_helpers.c

@@ -19,7 +19,7 @@ static __init bool test_string_check_buf(const char *name, unsigned int flags,
 	if (q_real == q_test && !memcmp(out_test, out_real, q_test))
 		return true;
 
-	pr_warn("Test '%s' failed: flags = %u\n", name, flags);
+	pr_warn("Test '%s' failed: flags = %#x\n", name, flags);
 
 	print_hex_dump(KERN_WARNING, "Input: ", DUMP_PREFIX_NONE, 16, 1,
 		       in, p, true);
@@ -290,7 +290,7 @@ test_string_escape_overflow(const char *in, int p, unsigned int flags, const cha
 
 	q_real = string_escape_mem(in, p, NULL, 0, flags, esc);
 	if (q_real != q_test)
-		pr_warn("Test '%s' failed: flags = %u, osz = 0, expected %d, got %d\n",
+		pr_warn("Test '%s' failed: flags = %#x, osz = 0, expected %d, got %d\n",
 			name, flags, q_test, q_real);
 }