doc: Backslashify dashes in long options to prevent —.

doc/bittorrent.txt

@@ -5,7 +5,7 @@ This chapter provides a small manual for using the implemented
 BitTorrent client. The BitTorrent client is provided as an optional
 add-on for ELinks, and needs to be enabled at compile time.  To build
 ELinks with BitTorrent support be sure to either pass
-`--enable-bittorrent` to `./configure` or change the value of
+`\--enable-bittorrent` to `./configure` or change the value of
 `CONFIG_BITTORRENT` to `yes` in `features.conf`.
 
 Using the BitTorrent Client

doc/exmode.txt

@@ -6,7 +6,7 @@ Are you a vim-controls nerd who wants to see them everywhere?  Welcome.
 Actually ELinks doesn't shine in this area yet very much. Heck, the famous
 hjkl foursome is still occupied by some feeble managers in the default keymap
 (we have that in our monumental TODO lists). Still, if you know what to touch
-during the compilation (`--enable-exmode`), you can get at least some familiar
+during the compilation (`\--enable-exmode`), you can get at least some familiar
 reply to the mighty ``:'' (colon) grip.
 
 

doc/faq.txt

@@ -34,7 +34,7 @@ The reason why normal cut and paste does not work is that ELinks requests all
 mouse event info even if it is compiled without GPM.  Therefore it is necessary
 to hold down the Shift key when cutting or pasting text.  If you do not need to
 use the mouse for navigation you can disable mouse support by passing
-`--disable-mouse` to configure.
+`\--disable-mouse` to configure.
 
 
 [[move]]
@@ -110,7 +110,7 @@ First, you must enable it in the `feature.conf` file before compiling.
 Second, you must run ELinks on a terminal that supports 256 colours:
 
  - link:http://dickey.his.com/xterm/xterm.html[Thomas Dickey's XTerm],
-   revision 111. XTerm must be compiled with `--enable-256-color`.
+   revision 111. XTerm must be compiled with `\--enable-256-color`.
 
  - Recent versions of
    link:http://www.chiark.greenend.org.uk/~sgtatham/putty/[PuTTY].

doc/mailcap.txt

@@ -21,7 +21,7 @@ on most UNIX systems--usually in /etc/mailcap--so this makes it possible for
 ELinks to know how to handle a great variety of file formats with little
 configuration. To be able to use mailcap, it has to be compiled into ELinks.
 This is the default. If you don't need mailcap support, just configure ELinks
-with the flag: --disable-mailcap.
+with the flag: \--disable-mailcap.
 
 
 Parameters to Mailcap Entries

doc/manual.txt

@@ -8,7 +8,7 @@ Welcome!  This is the entry point for the humble ELinks manual.  It is by no
 means complete, it is not even very homogeneous and it should eventually be
 superseded by a complete ELinks Book. Until this happens you may also find it
 necessary to refer to the manual page for a very quick reference, or the
-built-in documentation available via the --long-help and --config-help ELinks
+built-in documentation available via the \--long-help and \--config-help ELinks
 command-line arguments. The built-in documentation is sure to be up-to-date.
 
 There was a complete (or, for the most part complete) manual for Links 0.82 at

doc/small.txt

@@ -41,11 +41,11 @@ You can disable bookmarks, globhist and more, too, if you want to.
 [NOTE]
 .Notes
 ===============================================================================
- - --disable-backtrace disables internal backtrace code.
+ - \--disable-backtrace disables internal backtrace code.
- - --disable-nls disables i18n support.
+ - \--disable-nls disables i18n support.
- - --enable-fastmem disables internal `malloc()` debugging and use `alloca()`
+ - \--enable-fastmem disables internal `malloc()` debugging and use `alloca()`
    wherever possible.
- - --enable-small forces to remove some text descriptions in options and
+ - \--enable-small forces to remove some text descriptions in options and
    keybind stuff (regain 30Kb).
 ===============================================================================
 
@@ -54,15 +54,15 @@ options:
 `-----------------------`------------------------------------------------------
 Option			Description
 -------------------------------------------------------------------------------
---without-zlib		removes libz dependency (compression)
+\--without-zlib		removes libz dependency (compression)
---without-bzlib		removes libbz2 dependency (compression)
+\--without-bzlib	removes libbz2 dependency (compression)
---disable-xbel		removes expat dependency (XBEL bookmarks support)
+\--disable-xbel		removes expat dependency (XBEL bookmarks support)
---without-lua		removes liblua dependency (Lua scripting)
+\--without-lua		removes liblua dependency (Lua scripting)
---without-gnutls	removes libtls dependency (SSL support)
+\--without-gnutls	removes libtls dependency (SSL support)
---without-openssl	removes libssl dependency (SSL support)
+\--without-openssl	removes libssl dependency (SSL support)
---without-x 		removes libx11 dependency (restoring terminal title)
+\--without-x		removes libx11 dependency (restoring terminal title)
---without-spidermonkey  removes libjs dependency (JavaScript)
+\--without-spidermonkey removes libjs dependency (JavaScript)
---without-gpm		removes libgpm dependency (mouse/console)
+\--without-gpm		removes libgpm dependency (mouse/console)
 -------------------------------------------------------------------------------
 
 It seems GCC 2.95.x do not generate as small binaries as GCC 3.2.x with same
@@ -82,7 +82,7 @@ Here are some results using gcc 2.95.3, dietlibc-0.23, and previous flags:
 Whow ! Around 200kb :)
 
 [NOTE]
-.Details about the `--enable-small` configure option effects:
+.Details about the `\--enable-small` configure option effects:
 ==============================================================================
 - it disables long descriptions of options;
 - it disables textual descriptions of keybinding options;