Fix issue #467 Adding wiki as submodule to repo

* bootstrap.conf: Add clone_wiki() and call it from
  bootstrap_post_import_hook().

Signed-off-by: Jeffrey Marius <getjff@gmail.com>

.gitmodules

@@ -1,3 +1,6 @@
 [submodule "gnulib"]
 	path = gnulib
 	url = https://git.savannah.gnu.org/git/gnulib.git
+[submodule "wiki"]
+	path = wiki
+	url = https://gitlab.com/gnuwget/wget2.wiki.git

bootstrap.conf

@@ -164,6 +164,18 @@ pkg-config  -
 tar         -
 "
 
+clone_wiki() {
+	echo "Wget2 Wiki Cloning in progress..."
+	git submodule update --init -- wiki
+	wiki_status=$?
+	if [ $wiki_status -eq 0 ]
+	then
+		echo "\e[1;32mWiki pages cloned\e[0m"
+	else
+		echo "\e[1;31mUnable to clone wiki but no issues you can continue\e[0m"
+	fi
+}
+
 bootstrap_epilogue() {
 	rm -f tests/.gitignore
 	rm -f tests/_Noreturn.h \
@@ -181,4 +193,6 @@ bootstrap_post_import_hook ()
   #   build. ./bootstrap will create po/Makevars from po/Makevars.template
   #   after our change.
   echo 'PACKAGE_GNU = yes' >> po/Makevars.template
+
+  clone_wiki
 }