* use sysreallocmem as proposed in #41168

rtl/bsd/system.pp

@@ -256,7 +256,7 @@ var
 
   procedure AddBuf;
   begin
-    reallocmem(cmdline,size+bufsize);
+    sysreallocmem(cmdline,size+bufsize);
     move(buf^,cmdline[size],bufsize);
     inc(size,bufsize);
     bufsize:=0;