tree-wide: use IN_SET where possible

In addition to the changes from #6933 this handles cases that could be
matched with the included cocci file.

src/basic/util.c

@@ -378,7 +378,7 @@ int on_ac_power(void) {
 
                 device = openat(dirfd(d), de->d_name, O_DIRECTORY|O_RDONLY|O_CLOEXEC|O_NOCTTY);
                 if (device < 0) {
-                        if (errno == ENOENT || errno == ENOTDIR)
+                        if (IN_SET(errno, ENOENT, ENOTDIR))
                                 continue;
 
                         return -errno;