Remove wrong config parameter mention from manpage

Don't refer to the obsolete (and misspelled)
UseEntryGuardsAsDirectoryGuards config parameter in the manpage.

changes/bug23611

@@ -0,0 +1,4 @@
+  o Minor bugfixes (documentation):
+    - Fix manpage to not refer to the obsolete (and misspelled)
+      UseEntryGuardsAsDirectoryGuards parameter in the description of
+      NumDirectoryGuards.  Fixes bug 23611; bugfix on 0.2.4.8-alpha.

doc/tor.1.txt

@@ -1316,11 +1316,10 @@ The following options are useful only for clients (that is, if
     default to 1 if the consensus parameter isn't set. (Default: 0)
 
 [[NumDirectoryGuards]] **NumDirectoryGuards** __NUM__::
-    If UseEntryGuardsAsDirectoryGuards is enabled, we try to make sure we have
-    at least NUM routers to use as directory guards. If this option is set to
-    0, use the value from the guard-n-primary-dir-guards-to-use consensus
-    parameter, and default to 3 if the consensus parameter isn't set.
-    (Default: 0)
+    If UseEntryGuards is set to 1, we try to make sure we have at least NUM
+    routers to use as directory guards. If this option is set to 0, use the
+    value from the guard-n-primary-dir-guards-to-use consensus parameter, and
+    default to 3 if the consensus parameter isn't set.  (Default: 0)
 
 [[GuardLifetime]] **GuardLifetime**  __N__ **days**|**weeks**|**months**::
     If nonzero, and UseEntryGuards is set, minimum time to keep a guard before