Make spell menu work with repeat command

doc/fixes3-7-0.txt

@@ -1274,6 +1274,7 @@ digging down on a magical trap causes it to explode
 thrown potion of sickness now bypasses target's innate magic resistance but
 	only affects current hit points, no longer also reducing maximum HP
 lightning has a small chance of melting iron bars
+make spell menu work with repeat
 
 
 Fixes to 3.7.0-x General Problems Exposed Via git Repository

src/spell.c

@@ -695,6 +695,7 @@ getspell(int* spell_no)
 {
     int nspells, idx;
     char ilet, lets[BUFSZ], qbuf[QBUFSZ];
+    struct _cmd_queue cq, *cmdq;
 
     if (spellid(0) == NO_SPELL) {
         You("don't know any spells right now.");
@@ -703,6 +704,21 @@ getspell(int* spell_no)
     if (rejectcasting())
         return FALSE; /* no spell chosen */
 
+    if ((cmdq = cmdq_pop()) != 0) {
+        cq = *cmdq;
+        free(cmdq);
+        if (cq.typ == CMDQ_KEY) {
+            nspells = num_spells();
+            idx = spell_let_to_idx(cq.key);
+            if (idx < 0 || idx >= nspells)
+                return FALSE;
+            *spell_no = idx;
+            return TRUE;
+        } else {
+            return FALSE;
+        }
+    }
+
     if (flags.menu_style == MENU_TRADITIONAL) {
         /* we know there is at least 1 known spell */
         nspells = num_spells();
@@ -777,9 +793,11 @@ docast(void)
 {
     int spell_no;
 
-    if (getspell(&spell_no))
+    if (getspell(&spell_no)) {
+        cmdq_add_key(CQ_REPEAT, spellet(spell_no));
         return spelleffects(gs.spl_book[spell_no].sp_id, FALSE, FALSE);
-    return ECMD_OK;
+    }
+    return ECMD_FAIL;
 }
 
 static const char *