English fix

cf. [emacs-w3m:12706], http://emacs-w3m.namazu.org/ml/msg12598.html

doc-jp/README.tab

@@ -38,6 +38,6 @@ w3m $B$r%?%V%V%i%&%62=(B
   open_tab_blank $B!D(B target $B$,(B _blank $B$+(B _new $B$N>l9g$O?7$7$$%?%V$G3+$/(B
                     $B%G%U%)%k%H$O(B OFF
   close_tab_back $B!D(B $BLa$k;~$K%P%C%U%!$,:G8e$J$i%?%V$rJD$8$k(B
-                    $B%G%U%)%k%H$O(B OFF (= Can't back...)
+                    $B%G%U%)%k%H$O(B OFF (= Can't go back...)
 
 $B$rDI2C$7$F$$$^$9!#(B

doc/README.tab

@@ -39,7 +39,7 @@ Options:
   open_tab_blank ...	open new tab if target is _blank or _new
 			default: OFF
   close_tab_back ...	close the tab when you back from last buffer in the tab
-			default: OFF (= Can't back...)
+			default: OFF (= Can't go back...)
 
 
 

main.c

@@ -4105,7 +4105,7 @@ DEFUN(backBf, BACK, "Close current buffer and return to the one below in stack")
 	}
 	else
 	    /* FIXME: gettextize? */
-	    disp_message("Can't back...", TRUE);
+	    disp_message("Can't go back...", TRUE);
 	return;
     }