Correct a number of trivial typos.

src/core/dbus-manager.c

@@ -1482,7 +1482,7 @@ static int method_switch_root(sd_bus_message *message, void *userdata, sd_bus_er
 
         if (available < RELOAD_DISK_SPACE_MIN) {
                 char fb_available[FORMAT_BYTES_MAX], fb_need[FORMAT_BYTES_MAX];
-                log_warning("Dangerously low amount of free space on /run/systemd, root switching operation might not complete successfuly. "
+                log_warning("Dangerously low amount of free space on /run/systemd, root switching operation might not complete successfully. "
                             "Currently, %s are free, but %s are suggested. Proceeding anyway.",
                             format_bytes(fb_available, sizeof(fb_available), available),
                             format_bytes(fb_need, sizeof(fb_need), RELOAD_DISK_SPACE_MIN));

src/core/execute.c

@@ -4841,7 +4841,7 @@ int exec_runtime_deserialize_compat(Unit *u, const char *key, const char *value,
         if (rt_create) {
                 r = hashmap_put(u->manager->exec_runtime_by_id, rt_create->id, rt_create);
                 if (r < 0) {
-                        log_unit_debug_errno(u, r, "Failed to put runtime paramter to manager's storage: %m");
+                        log_unit_debug_errno(u, r, "Failed to put runtime parameter to manager's storage: %m");
                         return 0;
                 }
 

src/core/main.c

@@ -1641,7 +1641,7 @@ static int invoke_main_loop(
 
                         log_info("Reloading.");
 
-                        /* First, save any overriden log level/target, then parse the configuration file, which might
+                        /* First, save any overridden log level/target, then parse the configuration file, which might
                          * change the log level to new settings. */
 
                         saved_log_level = m->log_level_overridden ? log_get_max_level() : -1;

src/core/namespace.c

@@ -67,7 +67,7 @@ typedef struct MountEntry {
 } MountEntry;
 
 /* If MountAPIVFS= is used, let's mount /sys and /proc into the it, but only as a fallback if the user hasn't mounted
- * something there already. These mounts are hence overriden by any other explicitly configured mounts. */
+ * something there already. These mounts are hence overridden by any other explicitly configured mounts. */
 static const MountEntry apivfs_table[] = {
         { "/proc",               PROCFS,       false },
         { "/dev",                BIND_DEV,     false },

src/core/unit.c

@@ -5419,7 +5419,7 @@ int unit_pid_attachable(Unit *u, pid_t pid, sd_bus_error *error) {
 
         /* Some extra safety check */
         if (pid == 1 || pid == getpid_cached())
-                return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Process " PID_FMT " is a manager processs, refusing.", pid);
+                return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Process " PID_FMT " is a manager process, refusing.", pid);
 
         /* Don't even begin to bother with kernel threads */
         r = is_kernel_thread(pid);