patch 8.2.0247: misleading comment in NSIS installer script

Problem:    Misleading comment in NSIS installer script.
Solution:   Negate the meaning of the comment. (Ken Takata, closes #5627)
diff --git a/nsis/gvim.nsi b/nsis/gvim.nsi
index d782e43..2b40e4b 100644
--- a/nsis/gvim.nsi
+++ b/nsis/gvim.nsi
@@ -39,7 +39,7 @@
 # Uncomment the next line if you want to include VisVim extension:
 #!define HAVE_VIS_VIM
 
-# Comment the following line to create a multilanguage installer:
+# Comment the following line to create an English-only installer:
 !define HAVE_MULTI_LANG
 
 # Uncomment the next line if you want to create a 64-bit installer.