lib: peer_manager: fix typo and cleanup

* Fixes a typo.

* Removes extra newlines.

Author: MirkoCovizzi

include/bluetooth/peer_manager/peer_manager.h

@@ -201,8 +201,8 @@ uint32_t pm_conn_sec_params_reply(uint16_t conn_handle, ble_gap_sec_params_t *p_
  *          are not subscribed to the service changed indication when this function is called do not
  *          receive an indication, and no events are sent to the user. Likewise, if the service
  *          changed characteristic is not present in the local database, or if the
- *          @c CONFIG_PM_SERVICE_CHANGED Kconfig option is disabled, no indications are sent peers,
- *          and no events are sent to the user.
+ *          @c CONFIG_PM_SERVICE_CHANGED Kconfig option is disabled, no indications are sent to
+ *          the peers, and no events are sent to the user.
  */
 void pm_local_database_has_changed(void);
 

lib/peer_manager/modules/peer_id.c

@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
  */
 
-
 #include <stdint.h>
 #include <string.h>
 #include <limits.h>

lib/peer_manager/modules/pm_buffer.c

@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
  */
 
-
 #include <stdbool.h>
 #include <string.h>
 #include <zephyr/sys/atomic.h>