systemctl: fix potential pointer overflow
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@ -109,7 +109,7 @@ static int output_units_list(const UnitInfo *unit_infos, unsigned c) {
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(void) table_set_empty_string(table, "-");
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for (const UnitInfo *u = unit_infos; unit_infos && u < unit_infos + c; u++) {
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for (const UnitInfo *u = unit_infos; unit_infos && u - unit_infos < c; u++) {
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_cleanup_free_ char *j = NULL;
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const char *on_underline = "", *on_loaded = "", *on_active = "";
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const char *on_circle = "", *id;
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