build: consistently indent preprocessor directives

* global: patch created by running:
for f in $(git ls-files '*.[ch]') ; do
    cppi $f > $f.t && mv $f.t $f
done

src/node_device/node_device_driver.c

@@ -662,11 +662,11 @@ int nodedevRegister(void) {
         return udevNodeRegister();
     return 0;
 #else
-#ifdef HAVE_HAL
+# ifdef HAVE_HAL
     return halNodeRegister();
-#endif
-#ifdef HAVE_UDEV
+# endif
+# ifdef HAVE_UDEV
     return udevNodeRegister();
-#endif
+# endif
 #endif
 }