patch 8.2.0609: configure does not detect moonjit correctly

Problem:    Configure does not detect moonjit correctly.
Solution:   Double the brackets. (Ozaki Kiichi)
diff --git a/src/auto/configure b/src/auto/configure
index b6d4bf9..bd26a7c 100755
--- a/src/auto/configure
+++ b/src/auto/configure
@@ -5485,7 +5485,7 @@
 	  # https://groups.google.com/forum/#!topic/vim_use/O0vek60WuTk
 	  lua_suf=/moonjit-2.3
 	  inc_path="$vi_cv_path_lua_pfx/include"
-	  for dir in "$inc_path"/moonjit-0-9* ; do
+	  for dir in "$inc_path"/moonjit-[0-9]* ; do
 	    if test -d "$dir" ; then
 	      lua_suf=`basename '$dir'`
 	      lua_suf="/$lua_suf"
diff --git a/src/configure.ac b/src/configure.ac
index ebb79ce..2037de7 100644
--- a/src/configure.ac
+++ b/src/configure.ac
@@ -630,7 +630,7 @@
 	  # https://groups.google.com/forum/#!topic/vim_use/O0vek60WuTk
 	  lua_suf=/moonjit-2.3
 	  inc_path="$vi_cv_path_lua_pfx/include"
-	  for dir in "$inc_path"/moonjit-[0-9]* ; do
+	  for dir in "$inc_path"/moonjit-[[0-9]]* ; do
 	    if test -d "$dir" ; then
 	      lua_suf=`basename '$dir'`
 	      lua_suf="/$lua_suf"
diff --git a/src/version.c b/src/version.c
index 2b1a126..61f71a0 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    609,
+/**/
     608,
 /**/
     607,