Cygwin: fhandler/proc.cc(format_proc_cpuinfo): add newlines

Linux cpuinfo follows output for each processor with a blank line,
so we output newlines to get a blank line:
- newline after power management feature flags if printed;
- newline to give blank line after each processor output.

Reported-by: Achim Gratz https://cygwin.com/pipermail/cygwin/2024-July/256223.html
Signed-off-by: Brian Inglis <Brian.Inglis@SystematicSW.ab.ca>

winsup/cygwin/fhandler/proc.cc

@@ -1752,16 +1752,17 @@ format_proc_cpuinfo (void *, char *&destbuf)
 	  ftcprint (features1, 12, "acc_power");    /* core power reporting */
 /*	  ftcprint (features1, 13, "connstby"); */  /* connected standby */
 /*	  ftcprint (features1, 14, "rapl"); */	    /* running average power limit */
+
+	  print ("\n");
 	}
 
+      print ("\n");
+
       if (orig_affinity_mask != 0)
 	SetThreadGroupAffinity (GetCurrentThread (), &orig_group_affinity,
 				NULL);
-      print ("\n");
     }
 
-  print ("\n");
-
   destbuf = (char *) crealloc_abort (destbuf, bufptr - buf);
   memcpy (destbuf, buf, bufptr - buf);
   return bufptr - buf;