Fix doc string of 'enable-recursive-minibuffers'

* src/minibuf.c (syms_of_minibuf) <enable-recursive-minibuffers>:
Doc fix.  (Bug#29873)

Copyright-paperwork-exempt: yes

src/minibuf.c

@@ -2022,7 +2022,7 @@ controls the behavior, rather than this variable.  */);
   DEFVAR_BOOL ("enable-recursive-minibuffers", enable_recursive_minibuffers,
 	       doc: /* Non-nil means to allow minibuffer commands while in the minibuffer.
 This variable makes a difference whenever the minibuffer window is active.
-Also see `minibuffer-depth-indicator-mode', which may be handy if this
+Also see `minibuffer-depth-indicate-mode', which may be handy if this
 variable is non-nil. */);
   enable_recursive_minibuffers = 0;