analyze: add --mask to --help text (#35548)

src/analyze/analyze-plot.c

@@ -170,7 +170,7 @@ static void plot_tooltip(const UnitTimes *ut) {
         svg("%s:\n", ut->name);
         svg("Activating: %"PRI_USEC".%.3"PRI_USEC"\n", ut->activating / USEC_PER_SEC, ut->activating % USEC_PER_SEC);
         svg("Activated: %"PRI_USEC".%.3"PRI_USEC"\n", ut->activated / USEC_PER_SEC, ut->activated % USEC_PER_SEC);
-        
+
         UnitDependency i;
         FOREACH_ARGUMENT(i, UNIT_AFTER, UNIT_BEFORE, UNIT_REQUIRES, UNIT_REQUISITE, UNIT_WANTS, UNIT_CONFLICTS, UNIT_UPHOLDS)
                 if (!strv_isempty(ut->deps[i])) {

src/analyze/analyze.c

@@ -284,6 +284,7 @@ static int help(int argc, char *argv[], void *userdata) {
                "     --root=PATH             Operate on an alternate filesystem root\n"
                "     --image=PATH            Operate on disk image as filesystem root\n"
                "     --image-policy=POLICY   Specify disk image dissection policy\n"
+               "  -m --mask                  Parse parameter as numeric capability mask\n"
                "\nSee the %2$s for details.\n",
                program_invocation_short_name,
                link,