updated for version 7.4.170

Problem:    Some help tags don't work with ":help". (Tim Chase)
Solution:   Add exceptions.

src/ex_cmds.c

@@ -5936,14 +5936,18 @@ find_help_tags(arg, num_matches, matches, keep_lang)
 			       "?", ":?", "?<CR>", "g?", "g?g?", "g??", "z?",
 			       "/\\?", "/\\z(\\)", "\\=", ":s\\=",
 			       "[count]", "[quotex]", "[range]",
-			       "[pattern]", "\\|", "\\%$"};
+			       "[pattern]", "\\|", "\\%$",
+			       "s/\\~", "s/\\U", "s/\\L",
+			       "s/\\1", "s/\\2", "s/\\3", "s/\\9"};
     static char *(rtable[]) = {"star", "gstar", "[star", "]star", ":star",
 			       "/star", "/\\\\star", "quotestar", "starstar",
 			       "cpo-star", "/\\\\(\\\\)", "/\\\\%(\\\\)",
 			       "?", ":?", "?<CR>", "g?", "g?g?", "g??", "z?",
 			       "/\\\\?", "/\\\\z(\\\\)", "\\\\=", ":s\\\\=",
 			       "\\[count]", "\\[quotex]", "\\[range]",
-			       "\\[pattern]", "\\\\bar", "/\\\\%\\$"};
+			       "\\[pattern]", "\\\\bar", "/\\\\%\\$",
+                               "s/\\\\\\~", "s/\\\\U", "s/\\\\L",
+			       "s/\\\\1", "s/\\\\2", "s/\\\\3", "s/\\\\9"};
     int flags;
 
     d = IObuff;		    /* assume IObuff is long enough! */
@@ -5982,7 +5986,7 @@ find_help_tags(arg, num_matches, matches, keep_lang)
 	  /* Replace:
 	   * "[:...:]" with "\[:...:]"
 	   * "[++...]" with "\[++...]"
-	   * "\{" with "\\{"
+	   * "\{" with "\\{"               -- matching "} \}"
 	   */
 	    if ((arg[0] == '[' && (arg[1] == ':'
 			 || (arg[1] == '+' && arg[2] == '+')))

src/version.c

@@ -738,6 +738,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    170,
 /**/
     169,
 /**/