all: fix minor typos

[thaller@redhat.com: original patch by Yuri, extracted from [1]]

[1] https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/565

src/basic/process-util.c

@@ -1334,7 +1334,7 @@ int safe_fork_full(
 
                 ppid = getppid();
                 if (ppid == 0)
-                        /* Parent is in a differn't PID namespace. */;
+                        /* Parent is in a different PID namespace. */;
                 else if (ppid != original_pid) {
                         log_debug("Parent died early, raising SIGTERM.");
                         (void) raise(SIGTERM);

src/basic/random-util.c

@@ -77,7 +77,7 @@ int rdrand(unsigned long *ret) {
          *           hash functions for its hash tables, with a seed generated randomly. The hash tables
          *           systemd employs watch the fill level closely and reseed if necessary. This allows use of
          *           a low quality RNG initially, as long as it improves should a hash table be under attack:
-         *           the attacker after all needs to to trigger many collisions to exploit it for the purpose
+         *           the attacker after all needs to trigger many collisions to exploit it for the purpose
          *           of DoS, but if doing so improves the seed the attack surface is reduced as the attack
          *           takes place.
          *

src/basic/socket-util.c

@@ -105,7 +105,7 @@ int socket_address_verify(const SocketAddress *a, bool strict) {
                                 if (a->size != offsetof(struct sockaddr_un, sun_path) + (e - a->sockaddr.un.sun_path) + 1)
                                         return -EINVAL;
                         } else {
-                                /* If there's no embedded NUL byte, then then the size needs to match the whole
+                                /* If there's no embedded NUL byte, then the size needs to match the whole
                                  * structure or the structure with one extra NUL byte suffixed. (Yeah, Linux is awful,
                                  * and considers both equivalent: getsockname() even extends sockaddr_un beyond its
                                  * size if the path is non NUL terminated.)*/

src/libsystemd-network/sd-dhcp-client.c

@@ -376,7 +376,7 @@ int sd_dhcp_client_set_client_id(
         /* For hardware types, log debug message about unexpected data length.
          *
          * Note that infiniband's INFINIBAND_ALEN is 20 bytes long, but only
-         * last last 8 bytes of the address are stable and suitable to put into
+         * the last 8 bytes of the address are stable and suitable to put into
          * the client-id. The caller is advised to account for that. */
         if ((type == ARPHRD_ETHER && data_len != ETH_ALEN) ||
             (type == ARPHRD_INFINIBAND && data_len != 8))

src/libsystemd-network/sd-dhcp6-client.c

@@ -1489,7 +1489,7 @@ static int client_receive_message(
                         break;
                 }
 
-                _fallthrough_; /* for Soliciation Rapid Commit option check */
+                _fallthrough_; /* for Solicitation Rapid Commit option check */
         case DHCP6_STATE_REQUEST:
         case DHCP6_STATE_RENEW:
         case DHCP6_STATE_REBIND:

src/systemd/sd-lldp.h

@@ -176,7 +176,7 @@ int sd_lldp_neighbor_get_mud_url(sd_lldp_neighbor *n, const char **ret);
 int sd_lldp_neighbor_get_system_capabilities(sd_lldp_neighbor *n, uint16_t *ret);
 int sd_lldp_neighbor_get_enabled_capabilities(sd_lldp_neighbor *n, uint16_t *ret);
 
-/* Low-level, iterative TLV access. This is for evertyhing else, it iteratively goes through all available TLVs
+/* Low-level, iterative TLV access. This is for everything else, it iteratively goes through all available TLVs
  * (including the ones covered with the calls above), and allows multiple TLVs for the same fields. */
 int sd_lldp_neighbor_tlv_rewind(sd_lldp_neighbor *n);
 int sd_lldp_neighbor_tlv_next(sd_lldp_neighbor *n);