tree-wide: "human readable" → "human-readable"

Apparently, the spelling with a hyphen is better style in the English
language.

Suggested by: #36165

src/boot/boot.c

@@ -100,9 +100,9 @@ typedef struct BootEntry {
         char16_t *id;         /* The unique identifier for this entry (typically the filename of the file defining the entry, possibly suffixed with a profile id) */
         char16_t *id_without_profile; /* same, but without any profile id suffixed */
         char16_t *title_show; /* The string to actually display (this is made unique before showing) */
-        char16_t *title;      /* The raw (human readable) title string of the entry (not necessarily unique) */
+        char16_t *title;      /* The raw (human-readable) title string of the entry (not necessarily unique) */
         char16_t *sort_key;   /* The string to use as primary sort key, usually ID= from os-release, possibly suffixed */
-        char16_t *version;    /* The raw (human readable) version string of the entry */
+        char16_t *version;    /* The raw (human-readable) version string of the entry */
         char16_t *machine_id;
         EFI_HANDLE *device;
         LoaderType type;

src/core/unit.c

@@ -2393,7 +2393,7 @@ static int unit_log_resources(Unit *u) {
                 return log_oom();
 
         /* Invoked whenever a unit enters failed or dead state. Logs information about consumed resources if resource
-         * accounting was enabled for a unit. It does this in two ways: a friendly human readable string with reduced
+         * accounting was enabled for a unit. It does this in two ways: a friendly human-readable string with reduced
          * information and the complete data in structured fields. */
 
         (void) unit_get_cpu_usage(u, &cpu_nsec);

src/fundamental/bootspec-fundamental.c

@@ -17,8 +17,8 @@ bool bootspec_pick_name_version_sort_key(
 
         const sd_char *good_name, *good_version, *good_sort_key;
 
-        /* Find the best human readable title, version string and sort key for a boot entry (using the
-         * os-release(5) fields). Precise is preferred over vague, and human readable over machine
+        /* Find the best human-readable title, version string and sort key for a boot entry (using the
+         * os-release(5) fields). Precise is preferred over vague, and human-readable over machine
          * readable. Thus:
          *
          * 1. First priority gets the PRETTY_NAME field, which is the primary string intended for display,
@@ -28,7 +28,7 @@ bool bootspec_pick_name_version_sort_key(
          * 2. Otherwise we go for IMAGE_ID and IMAGE_VERSION (thus we show details about the image,
          *    i.e. specific combination of packages and configuration), if that concept applies.
          *
-         * 3. Otherwise we go for NAME and VERSION (i.e. human readable OS name and version)
+         * 3. Otherwise we go for NAME and VERSION (i.e. human-readable OS name and version)
          *
          * 4. Otherwise we go for ID and VERSION_ID (i.e. machine readable OS name and version)
          *

src/shared/ask-password-api.h

@@ -19,7 +19,7 @@ typedef enum AskPasswordFlags {
 
 /* Encapsulates the mostly static fields of a password query */
 typedef struct AskPasswordRequest {
-        const char *message;         /* The human readable password prompt when asking interactively */
+        const char *message;         /* The human-readable password prompt when asking interactively */
         const char *keyring;         /* kernel keyring key name (key of "user" type) */
         const char *icon;            /* freedesktop icon spec name */
         const char *id;              /* some identifier used for this prompt for the "ask-password" protocol */

src/systemctl/systemctl.c

@@ -271,7 +271,7 @@ static int systemctl_help(void) {
                "                         For kill, wait until service stopped\n"
                "     --no-block          Do not wait until operation finished\n"
                "     --no-wall           Don't send wall message before halt/power-off/reboot\n"
-               "     --message=MESSAGE   Specify human readable reason for system shutdown\n"
+               "     --message=MESSAGE   Specify human-readable reason for system shutdown\n"
                "     --no-reload         Don't reload daemon after en-/dis-abling unit files\n"
                "     --legend=BOOL       Enable/disable the legend (column headers and hints)\n"
                "     --no-pager          Do not pipe output into a pager\n"

src/systemd/sd-daemon.h

@@ -189,9 +189,9 @@ int sd_is_mq(int fd, const char *path);
                   that describes the daemon state. This is free-form
                   and can be used for various purposes: general state
                   feedback, fsck-like programs could pass completion
-                  percentages and failing programs could pass a human
-                  readable error message. Example: "STATUS=Completed
-                  66% of file system check..."
+                  percentages and failing programs could pass a
+                  human-readable error message. Example:
+                  "STATUS=Completed 66% of file system check..."
 
      NOTIFYACCESS=...
                   Reset the access to the service status notification socket.