Fix auto-replace to respect whole-word matches

plugins/lua/meson.build

@@ -1,7 +1,19 @@
 if cc.get_id() == 'msvc'
   lua_dep = cc.find_library('lua51')
 else
-  lua_dep = dependency(get_option('with-lua'))
+  lua_opt = get_option('with-lua')
+  lua_dep = dependency(lua_opt, required: false)
+  if not lua_dep.found() and lua_opt == 'lua-5.4'
+    foreach lua_name : ['lua5.4', 'lua-5.3', 'lua5.3', 'lua']
+      lua_dep = dependency(lua_name, required: false)
+      if lua_dep.found()
+        break
+      endif
+    endforeach
+  endif
+  if not lua_dep.found()
+    error('Dependency "' + lua_opt + '" not found')
+  endif
 endif
 
 shared_module('lua', 'lua.c',