selftests/bpf: Fix a typo in test_maps

Trivial fix to a typo in the test_map_wronly test: "read" -> "write"

Signed-off-by: Anton Protopopov <[email protected]>
Signed-off-by: Daniel Borkmann <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
Signed-off-by: Alexei Starovoitov <[email protected]>

Author: aspsk

tools/testing/selftests/bpf/test_maps.c

@@ -1410,7 +1410,7 @@ static void test_map_wronly(void)
 	fd = bpf_create_map(BPF_MAP_TYPE_HASH, sizeof(key), sizeof(value),
 			    MAP_SIZE, map_flags | BPF_F_WRONLY);
 	if (fd < 0) {
-		printf("Failed to create map for read only test '%s'!\n",
+		printf("Failed to create map for write only test '%s'!\n",
 		       strerror(errno));
 		exit(1);
 	}