update Lua version supported

sys/msdos/Install.dos

@@ -42,7 +42,7 @@ II. There once was a time when people built NetHack right on their DOS machine.
     a DOS-extender (for including in msdos packaging) from:
         http://sandmann.dotster.com/cwsdpmi/csdpmi7b.zip
     and Lua from:
-        http://www.lua.org/ftp/lua-5.4.4.tar.gz
+        http://www.lua.org/ftp/lua-5.4.6.tar.gz
 
     If you want the DOSVGA build, to support higher resolutions and Unicode
     symbols, you also need:

sys/msdos/Makefile.GCC

@@ -50,13 +50,13 @@ endif
 ifeq "$(LUA_VERSION)" "5.3.5"
 LUAVER=535
 else
-LUAVER=544
+LUAVER=546
 endif
 #---------------------------------------------------------------
 # Location of LUA
 #
 # Original source needs to be obtained from: 
-#    http://www.lua.org/ftp/lua-5.4.4.tar.gz
+#    http://www.lua.org/ftp/lua-5.4.6.tar.gz
 #
 #    This build assumes that the LUA sources are located
 #    at the specified location. If they are actually elsewhere
@@ -319,7 +319,7 @@ ALLOBJ = $(VOBJ) $(SOBJ) $(TILOBJ) $(TILOBJ2) $(VVOBJ)
 
 #===============-=================================================
 # LUA library
-# Source from http://www.lua.org/ftp/lua-5.4.4.tar.gz
+# Source from http://www.lua.org/ftp/lua-5.4.6.tar.gz
 #=================================================================
 
 LUASRC   = $(LUATOP)/src

sys/msdos/fetch-cross-compiler.sh

@@ -15,7 +15,7 @@ if [ -z "$GCCVER" ]; then
 fi
 
 if [ -z "$LUA_VERSION" ]; then
-	export LUA_VERSION=5.4.4
+	export LUA_VERSION=5.4.6
 fi
 
 if [ ! -d "$(pwd)/lib" ]; then