halcmd, plasmac: print 64-bit sint values arch-neutrally

The thread time/tmax and plasmac low_cut_volts prints used %ld with
hal_get_sint() values (int64_t), which only matches on LP64. Use
fmt::format for the halcmd thread print (fmt is already used in this
file and formats int64_t natively) and a (long long) cast with %lld
for the plasmac realtime component, where rtapi_print_msg is the
only output channel.

Author: grandixximo

src/hal/components/plasmac.comp

@@ -802,9 +802,9 @@ FUNCTION(_) {
         probe_required = TRUE;
         rtapi_print_msg(RTAPI_MSG_ERR,"arc voltage fell below safe level while THC active\n"
                                       "target voltage = %.2f\n"
-                                      "low cut volts = %ld\n"
+                                      "low cut volts = %lld\n"
                                       "arc voltage = %.2f\n"
-                                      "program is paused.\n", target_volts, low_cut_volts, arc_voltage_out);
+                                      "program is paused.\n", target_volts, (long long)low_cut_volts, arc_voltage_out);
         probe_inhibit = TRUE;
         state = MAX_HEIGHT;
     }

src/hal/utils/halcmd_commands.cc

@@ -1763,12 +1763,21 @@ static void print_thread_info_print(const hal_query_t *q, const char **patterns)
         int rvm = hal_getref_p(&qm);
         if(!rvt && !rvm) {
             // note that the scriptmode format string has no \n
-            halcmd_output((!scriptmode ? "%11ld  %-3s  %20s ( %8ld, %8ld )\n" : "%ld %s %s %8ld %ld"),
-                q->thread.period,
-                "YES",  // Always uses FP
-                q->name,
-                hal_get_sint(qt.pp.ref.s),
-                hal_get_sint(qm.pp.ref.s));
+            if(!scriptmode) {
+                halcmd_output("%s", fmt::format("{:11d}  {:<3s}  {:>20s} ( {:8d}, {:8d} )\n",
+                    q->thread.period,
+                    "YES",  // Always uses FP
+                    q->name,
+                    hal_get_sint(qt.pp.ref.s),
+                    hal_get_sint(qm.pp.ref.s)).c_str());
+            } else {
+                halcmd_output("%s", fmt::format("{:d} {:s} {:s} {:8d} {:d}",
+                    q->thread.period,
+                    "YES",  // Always uses FP
+                    q->name,
+                    hal_get_sint(qt.pp.ref.s),
+                    hal_get_sint(qm.pp.ref.s)).c_str());
+            }
         } else {
             rtapi_print_msg(RTAPI_MSG_ERR, "unexpected: cannot find time/tmax pin for %s thread\n", q->name);
         }