RISC_OSLib txtedit uses '_Version' for info box

This is the other half of !Edit, which now uses the centralised awk script to insert its version number into about boxes.
Retagged as RISC_OSLib-5_71.

rlib/c/txtedit

@@ -2837,8 +2837,8 @@ dbox d;
     if (d == 0) return;
     dbox_raw_eventhandler(d, help_dboxrawevents, "PROGINFO");
 
-   /* Place the version string in the dialogue box */
-    dbox_setfield(d, 4, msgs_lookup("EditId"));         /* AMcC 17-Jan-95 */
+    /* Place the version string in the dialogue box */
+    dbox_setfield(d, 4, msgs_lookup("_Version"));
 
     dbox_show(d);
     dbox_fillin(d);