Appl new code style on whole code base

Use a similar code style to bemanitools though reduce indentation
to 2 spaces. Also some other tweaks to be more similar to google
style.

src/api/ptapi/io/x11-input-hook.h

@@ -1,6 +1,7 @@
 /**
- * Pumptools hooks into the X11 event dispatch loop to grab different events and exposes
- * keyboard input events. This allows external modules to react to these inputs.
+ * Pumptools hooks into the X11 event dispatch loop to grab different events and
+ * exposes keyboard input events. This allows external modules to react to these
+ * inputs.
  */
 #ifndef PTAPI_IO_X11_INPUT_HOOK_H
 #define PTAPI_IO_X11_INPUT_HOOK_H
@@ -12,28 +13,31 @@
  * Set functions you do not use to NULL.
  */
 struct ptapi_io_x11_input_hook_handler {
-    /**
-     * Dispatch the key press event
-     *
-     * @param key Key pressed
-     */
-    void (*dispatch_key_press)(KeySym key);
+  /**
+   * Dispatch the key press event
+   *
+   * @param key Key pressed
+   */
+  void (*dispatch_key_press)(KeySym key);
 
-    /**
-     * Dispatch the key release event
-     *
-     * @param key Key released
-     */
-    void (*dispatch_key_release)(KeySym key);
+  /**
+   * Dispatch the key release event
+   *
+   * @param key Key released
+   */
+  void (*dispatch_key_release)(KeySym key);
 };
 
-typedef const struct ptapi_io_x11_input_hook_handler* (*ptapi_io_x11_input_handler_hook_t)(void);
+typedef const struct ptapi_io_x11_input_hook_handler *(
+    *ptapi_io_x11_input_handler_hook_t)(void);
 
 /**
  * Get an input hook handler to receive keyboard inputs from the X11 event loop.
  *
- * @return Either a valid handler structure with dispatch functions or NULL if unused.
+ * @return Either a valid handler structure with dispatch functions or NULL if
+ * unused.
  */
-const struct ptapi_io_x11_input_hook_handler* ptapi_io_x11_input_handler_hook(void);
+const struct ptapi_io_x11_input_hook_handler *
+ptapi_io_x11_input_handler_hook(void);
 
 #endif