Allow m-prefixing #annotate

This is the same as m-prefixing #overview

doc/Guidebook.mn

@@ -1247,6 +1247,9 @@ Autocompletes.
 Default key is \(oqM-A\(cq, and also \(oq\(haN\(cq if
 .op number_pad
 is on.
+.lp ""
+Preceding #annotate with the \(oqm\(cq prefix is the same as
+#overview with the prefix.
 .lp "#apply   "
 Apply (use) a tool such as a pick-axe, a key, or a lamp.
 Default key is \(oqa\(cq.

doc/Guidebook.tex

@@ -1286,6 +1286,10 @@ dungeon level.  All levels with annotations are displayed by the
 ``\texttt{\#overview}'' command. Autocompletes.
 Default key is `\texttt{M-A}',
 and also `\texttt{\textasciicircum N}' if \textit{number\textunderscore pad} is on.
+\\
+%.lp ""
+Preceding \#annotate with the `\texttt{m}' prefix is the same as
+\#overview with the prefix.
 %.lp
 \item[\#apply]
 Apply (use) a tool such as a pick-axe, a key, or a lamp.

src/cmd.c

@@ -1673,7 +1673,7 @@ struct ext_func_tab extcmdlist[] = {
     { M('a'), "adjust", "adjust inventory letters",
               doorganize, IFBURIED | AUTOCOMPLETE | GENERALCMD, NULL },
     { M('A'), "annotate", "name current level",
-              donamelevel, IFBURIED | AUTOCOMPLETE | GENERALCMD, NULL },
+              donamelevel, IFBURIED | AUTOCOMPLETE | GENERALCMD | CMD_M_PREFIX, NULL },
     { 'a',    "apply", "apply (use) a tool (pick-axe, key, lamp...)",
               doapply, CMD_M_PREFIX, NULL },
     { C('x'), "attributes", "show your attributes",

src/dungeon.c

@@ -2564,6 +2564,8 @@ query_annotation(d_level *lev)
 int
 donamelevel(void)
 {
+    if (iflags.menu_requested)
+        return dooverview();
     query_annotation((d_level *) 0);
     return ECMD_OK;
 }