Migrate escaped directives (\[[) in doc/bugs to have \[[! prefix

doc/bugs/Map_sorts_subtags_under_a_different_tag.mdwn

@@ -16,7 +16,7 @@ I have a few tags starting with `a` (abridged list):
 
 In `wiki-wc/factors/tag.mdwn`, I have a map for these tags:
 
-    \[[map pages="factors/tag/*"]]
+    \[[!map pages="factors/tag/*"]]
 
 and this works, except that for *whatever* reason, it actually sorts the three
 `affects/*` tags under `active`:

doc/bugs/Toc_map_and_template_plugins_do_not_play_well_together.mdwn

@@ -8,7 +8,7 @@ The following renders incorrectly:
 
 	# header2
 
-	\[[map pages="sandbox"]]
+	\[[!map pages="sandbox"]]
 
 
 Removing the `\[[!toc]]` directive or moving it at the end of the page

doc/bugs/debbug_shortcut_should_expand_differently.mdwn

@@ -1,4 +1,4 @@
-`\[[debbug 123456]]` expands to "bug #123456", which is hyperlinked. Could you please drop the leading "bug", for two reasons?
+`\[[!debbug 123456]]` expands to "bug #123456", which is hyperlinked. Could you please drop the leading "bug", for two reasons?
 
 First, #123456 is not a bug, it's a bug report. And second, #123456 suffices, doesn't it? By hardcoding the "bug" in there, you make it impossible to start a sentence with a bug number, e.g.:
 

doc/bugs/img_plugin_causes_taint_failure.mdwn

@@ -1,6 +1,6 @@
 The img plugin causes a taint failure if one tries to link a scaled image, e.g.
 
-    \[[img foo.png size=64x64]]
+    \[[!img foo.png size=64x64]]
 
     .ikiwiki.setup: Insecure dependency in mkdir while running with -T switch at /usr/lib/perl5/vendor_perl/5.8.8/IkiWiki.pm line 360.
     BEGIN failed--compilation aborted at (eval 5) line 109.

doc/bugs/iniline_breaks_toc_plugin.mdwn

@@ -1,7 +1,7 @@
 Hi, I try to make an example to reproduce some bug with inline and toc plugins.
 My friend uses
 
-    \[[inline pages="users/joey" raw="yes"]]
+    \[[!inline pages="users/joey" raw="yes"]]
 
 to include common snippets in various pages, and it works as advertised, but if toc plugin is used, page is messed up.
 

doc/bugs/map_doesn__39__t_calculate___34__common__95__prefix__34___correctly.mdwn

@@ -4,7 +4,7 @@ Problem with [[plugins/map]]:
 
 ## given map:
 
-\[[map pages="blog/tags/*"]]
+\[[!map pages="blog/tags/*"]]
 
 ## received map:
 

doc/bugs/special_characters_in_tag_names_need_manual_escaping.mdwn

@@ -1,3 +1,3 @@
-Having read i18n_characters_in_post_title, I have a page named `St John's` in a file named `St_John__39__s.mdwn`.  Regular wikilinks like `\\[[St_John's]]` successfully point to that page.  However, if I tag a page with `\[[tag St_John's]]`, that link is shown as pointing to a non-existant page.  Modify the tag to read `\[[tag St_John__39__s]]` works around the problem.
+Having read i18n_characters_in_post_title, I have a page named `St John's` in a file named `St_John__39__s.mdwn`.  Regular wikilinks like `\\[[St_John's]]` successfully point to that page.  However, if I tag a page with `\[[!tag St_John's]]`, that link is shown as pointing to a non-existant page.  Modify the tag to read `\[[!tag St_John__39__s]]` works around the problem.
 
 [[done]] in 1.49 --[[Joey]]

doc/bugs/wiki_formatting_does_not_work_between_toc_and_an_inline.mdwn

@@ -1,4 +1,4 @@
-Wiki formatting between `\[[toc ]]` and an inline fails to render.  The
+Wiki formatting between `\[[!toc ]]` and an inline fails to render.  The
 problem does not seem to trigger if the inline uses the titlepage template,
 or if it doesn't match any pages.  See example below; also reproducible
 with a single-file wiki containing the text below, rendered via `ikiwiki

doc/bugs/wikilink_in_table.mdwn

@@ -1,6 +1,6 @@
 I try to create wikilink in table. But it does not work. Here is example:
 
-	\[[table class=table1 data="""
+	\[[!table class=table1 data="""
 	\[[wikilink_test|index]]
 	\[[wikilink_test\|index]]
 	[wikilink test](/servers/webmail1)
@@ -21,7 +21,7 @@ What exactly is a difference between wikilink and URL reference to the same page
 
 Trying to report this I found something weird. I changed in the example [[ with || because wiki renders something wrongly. You can see what I tried originally here:
 
-	\[[table class=table1 data="""
+	\[[!table class=table1 data="""
 	\[[wikilink_test|servers/webmail1]]
 	\[[wikilink_test|servers/webmail1]]
 	[wikilink test](/servers/webmail1)