tree-wide: fix some double word errors like "the the"

By chance (because I had this mistake in my own commit) I noticed
that there are a bunch of duplicated works like "the the" in the
code and man-pages.

This commit fixes them and some similar issues with "and and" etc.

src/core/namespace.c

@@ -2628,7 +2628,7 @@ int setup_namespace(const NamespaceParameters *p, char **reterr_path) {
                                 root_mount_fd = _root_mount_fd;
                         }
 
-                        /* Try to to clone the directory mount if we have privs to, so that we can apply the
+                        /* Try to clone the directory mount if we have privs to, so that we can apply the
                          * MS_SLAVE propagation settings right-away. */
                         if (root_mount_fd < 0) {
                                 _root_mount_fd = open_tree_attr_with_fallback(

src/fundamental/uki.h

@@ -15,7 +15,7 @@ typedef enum UnifiedSection {
         UNIFIED_SECTION_DTB,
         UNIFIED_SECTION_UNAME,
         UNIFIED_SECTION_SBAT,
-        UNIFIED_SECTION_PCRSIG,   /* This is is not measured actually */
+        UNIFIED_SECTION_PCRSIG,   /* This is not measured actually */
         UNIFIED_SECTION_PCRPKEY,
         UNIFIED_SECTION_PROFILE,
         UNIFIED_SECTION_DTBAUTO,

src/resolve/resolved-hook.c

@@ -23,7 +23,7 @@
  * of resolution requests we keep multiple connections open thus, but not too many. */
 #define HOOK_IDLE_CONNECTIONS_MAX 4U
 
-/* Encapsulates a specific hook, i.e. bound socket in in the /run/systemd/resolve.hook/ directory */
+/* Encapsulates a specific hook, i.e. bound socket in the /run/systemd/resolve.hook/ directory */
 typedef struct Hook {
         unsigned n_ref;
 

src/shared/mstack.c

@@ -456,7 +456,7 @@ static int mstack_load_now(MStack *mstack, const char *dir, int dir_fd, MStackFl
         if (dir_fd < 0) {
                 _dir_fd = openat(AT_FDCWD, isempty(dir) ? "." : dir, O_DIRECTORY|O_CLOEXEC);
                 if (_dir_fd < 0)
-                        return log_debug_errno(errno, "Failed to to open '%s': %m", dir);
+                        return log_debug_errno(errno, "Failed to open '%s': %m", dir);
 
                 dir_fd = _dir_fd;
         } else {

src/shared/varlink-io.systemd.Login.c

@@ -26,7 +26,7 @@ SD_VARLINK_DEFINE_ENUM_TYPE(
                 SD_VARLINK_DEFINE_ENUM_VALUE(user_early_light),
                 SD_VARLINK_FIELD_COMMENT("Display manager greeter screen used for login"),
                 SD_VARLINK_DEFINE_ENUM_VALUE(greeter),
-                SD_VARLINK_FIELD_COMMENT("Similar, but a a lock screen"),
+                SD_VARLINK_FIELD_COMMENT("Similar, but a lock screen"),
                 SD_VARLINK_DEFINE_ENUM_VALUE(lock_screen),
                 SD_VARLINK_FIELD_COMMENT("Background session (that has no TTY, VT, Seat)"),
                 SD_VARLINK_DEFINE_ENUM_VALUE(background),

src/shared/varlink-io.systemd.Resolve.Hook.c

@@ -39,7 +39,7 @@ static SD_VARLINK_DEFINE_METHOD(
                 ResolveRecord,
                 SD_VARLINK_FIELD_COMMENT("The question being looked up, i.e. a combination of resource record keys. Note that unlike DNS "
                                          "queries on the wire these lookups can carry multiple key requests, albeit closely related ones. "
-                                         "Specifically, lookups for A+AAAA for the the same hostname are submitted as one question, as "
+                                         "Specifically, lookups for A+AAAA for the same hostname are submitted as one question, as "
                                          "are lookups for TXT+SRV when doing DNS-SD resolution. Moreover, when looking up resources with "
                                          "non-ASCII characters, they are placed together in a single question, once with labels encoded in "
                                          "UTF-8, and once in IDNA. Hook implementations must be able to deal with these and other similar "

src/udev/udev-builtin-blkid.c

@@ -187,7 +187,7 @@ static int find_gpt_root(UdevEvent *event, blkid_probe pr, const char *loop_back
                          * hence no need to bother with searching for ESP/XBOOTLDR */
                         need_esp_or_xbootldr = false;
                 } else
-                        /* We now know the the ESP/xbootldr UUID, but we cannot be sure yet it's on this block
+                        /* We now know the ESP/xbootldr UUID, but we cannot be sure yet it's on this block
                          * device, hence look for it among partitions now */
                         need_esp_or_xbootldr = true;
         } else {