tree-wide: make use of new STRLEN() macro everywhere (#7639)

Let's employ coccinelle to do this for us.

Follow-up for #7625.

src/shared/ask-password-api.c

@@ -252,11 +252,13 @@ int ask_password_tty(
                 }
 
                 if (colors_enabled())
-                        loop_write(ttyfd, ANSI_HIGHLIGHT, strlen(ANSI_HIGHLIGHT), false);
+                        loop_write(ttyfd, ANSI_HIGHLIGHT,
+                                   STRLEN(ANSI_HIGHLIGHT), false);
                 loop_write(ttyfd, message, strlen(message), false);
                 loop_write(ttyfd, " ", 1, false);
                 if (colors_enabled())
-                        loop_write(ttyfd, ANSI_NORMAL, strlen(ANSI_NORMAL), false);
+                        loop_write(ttyfd, ANSI_NORMAL, STRLEN(ANSI_NORMAL),
+                                   false);
 
                 new_termios = old_termios;
                 new_termios.c_lflag &= ~(ICANON|ECHO);

src/shared/dissect-image.c

@@ -1186,7 +1186,7 @@ int root_hash_load(const char *image, void **ret, size_t *ret_size) {
                 if (!IN_SET(r, -ENODATA, -EOPNOTSUPP, -ENOENT))
                         return r;
 
-                fn = newa(char, strlen(image) + strlen(".roothash") + 1);
+                fn = newa(char, strlen(image) + STRLEN(".roothash") + 1);
                 n = stpcpy(fn, image);
                 e = endswith(fn, ".raw");
                 if (e)

src/shared/logs-show.c

@@ -506,7 +506,9 @@ static int output_verbose(
         else {
                 _cleanup_free_ char *value = NULL;
 
-                r = parse_field(data, length, "_SOURCE_REALTIME_TIMESTAMP=", strlen("_SOURCE_REALTIME_TIMESTAMP="), &value, NULL);
+                r = parse_field(data, length, "_SOURCE_REALTIME_TIMESTAMP=",
+                                STRLEN("_SOURCE_REALTIME_TIMESTAMP="), &value,
+                                NULL);
                 if (r < 0)
                         return r;
                 assert(r > 0);

src/shared/utmp-wtmp.c

@@ -425,7 +425,7 @@ int utmp_wall(
                 if (u->ut_type != USER_PROCESS || u->ut_user[0] == 0)
                         continue;
 
-                /* this access is fine, because strlen("/dev/") << 32 (UT_LINESIZE) */
+                /* this access is fine, because STRLEN("/dev/") << 32 (UT_LINESIZE) */
                 if (path_startswith(u->ut_line, "/dev/"))
                         path = u->ut_line;
                 else {